Rodolfo Biagi (March 14, 1906, in Buenos Aires – September 24, 1969) was an Argentine orchestra conductor, composer, and pianist whose nickname was "manos brujas" ("magic hands") and who is considered
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75dac62668fbd14ef7322eee00e3f930ec1516612fa97c87e372b1810a7a44df. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a3daa5ae-3452-4466-8ed5-58f1240c185e.json and https://artists.proofprofile.net/proofs/artist/a3daa5ae-3452-4466-8ed5-58f1240c185e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x989995a3275a9a16fb9821bed3b03f0c706f06e161517fe5b0a2d5ea52a318bd. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARG991047991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69b74c7ef182859d2b4ac7e666984e4c2d3395796b4a478a9170a018453f95d9. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARG991048006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefd568666548425ae6149e15f9385ffa42e9745a181ee56c11d4ff1e86731347. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARG991048008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5b29edf5226e8a15f70b0eb01b6d42a15daabfc0b78b3050e235d7aedff859a. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARG991047989.
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb30659e5c3a02bf69ef0fb3bdc52ac0ff541dbfb5445d9d6d83d94193bacf39. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARG991047995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe11493f44a52ba97bca0f85b8802a0b34c508212553cbcfe9382ae0d546c867a. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARG991047997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab2ba2e24ade4ac623ef6ddd9320263c516870a90f59b2acfcc46e48721d0cab. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARG991048018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9d557c0fae2d6602104589d7787239758ead24c46352d7ea18681f6508dec20. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARG991048032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19cf5b02d7d516a6b6e84c227ab53d71ee9f095385ef1782c74c657a9cf8bd73. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T06:58:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEXN82256339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8feaa5e18936a11fe88490266abafa833fd9ea55e1d46bf8997324280f3c0f42. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEXN82256340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x895dd7666bd334979c7805d24960a4f7cdf86a71f0e87cc096cb9eee94aa1214. Chain 2 (Bitcoin): anchored in block 957539 (2026-07-11T08:09:42Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEXN82256341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74d7d42be5171d1b272f765b428aed3dc9af4205a2413a393abbf1e97912bb82. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:06:17Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEXN82256343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff1528c2386ba1a17bb62b0c806a010f518271b6ffbc9f84c2879f6256a010ef. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T20:58:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEXN82256346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79800c578d37dd6d3065f5e55ab834814cc2e29b0a23f19fb7e783fb07f921db. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEXN82256352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec6f7bb3e56e4cfcda528ed303faa476d9d051db5e73fe432c69ad4905bc5a8e. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEXN82256354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65a397c4a98cdbe0cd68c81d27388dd189207d2e6df1b31c882b4308e2e0be1d. Chain 2 (Bitcoin): anchored in block 958531 (2026-07-18T09:39:18Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEXN82256356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a398a76a68b4b2fa44c8525212fbc24e50aa3e8c612a4fd4cd56cf7609d272e. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEXN82256389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23d7acab29f3433cfb80956aaa1511a80810d94cf5b4aec6d2bd05b9898ac7aa. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T10:39:54Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEXN82256391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90058c5d3b30c4bd37d59ab6831950311d0845b3b08f817263aa74c0b001195c. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEXN82256399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x013e40152438941b0d0a1ccf0585263125da7a2846894f2a66d6acee4e05e42f. Chain 2 (Bitcoin): anchored in block 958870 (2026-07-20T11:19:23Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEXN82256401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x677eaf8ed39e73d6014748dda7449e8292ae4eed7a95f3837ccb9c76a54e786d. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEXN82256405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x120e086169f9a1464df16661708265a689f1733b9ea1e40ffd8825a698f0f78b. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARG992042721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc519027f4cebe6b05db9647e1c74c8d21b0abab30ce9c7ddd84055e915889ea5. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARG992042722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26f48629fba43e2f6689e5561905916b29aa7cf2c183763af76fec1a4b2c4f53. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARG992042725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5157c59c1db186879d9a65f9247c7c847b050cf7d4d457095362cd84d76490e7. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARG992042728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb180d541b55546464dc7b34a8918121f7409cf682134d6b737f3692920cbfb32. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T21:23:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARG992042729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe13cf194f885b4c1d0a9959c0c82710db27a5ecc262ace60cfe026bb7aa78fa1. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARG992042735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35f558c7b376612ac64eb66c874bb0536b4a9649dac917edf1938767e798045a. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:23:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARG992042740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe910f5426e6a3da5e7859828f78a3e195d76a7bbd028d0141d4d43c6a763bf5. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA561129284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacaeeae8812b6a45fe7d2f5a97343c1b59117d1cc2b68627d8674c9636b204bd. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T13:22:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA561129285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdedadca3fd97f7f71303cd1eba17430c5472768a66f10e300f2152086e9a2ef0. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T21:03:00Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN721002513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb136fa597ea55329221f08b8f0a78cd0b711d27d2155e03ceeb608138cf9d99a. Chain 2 (Bitcoin): anchored in block 957539 (2026-07-11T08:09:42Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN721002501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a9510da708f61aae72e9c7977f5c1ca7e0502087339b303456368f1095be21a. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN721002503.
Tango Classics 038: Son cosas del bandoneon
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f594df9f5e4e71f655627a24b7d8f78ecd4dc8847a1ffd1e9408c8403f7a5bc. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN721103141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6576370992febba2efd830079215384ecbb0a12fc0780ba0e138dcd81eca05a5. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN721103405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd68a993e8f3778404a2bbef8a0ee7e1d848fc5639449bf9ca6af94e1680597d3. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN721103410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77e30865515829bba2642078be052d98d5087117d2c66b2e27dbc2adfdb7ff5d. Chain 2 (Bitcoin): anchored in block 958476 (2026-07-18T01:26:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN721103443.
Tango Classics 101: Cuando llora la milonga
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19f0d96bad152e28a73839b03caf81be321deb05fbebb52be4873cc0faf7ebb4. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T19:58:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARA821100498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7d066ae88aee6c7c67c920a99f1385e33b7187ad3610f19928e811178f34724. Chain 2 (Bitcoin): anchored in block 958554 (2026-07-18T13:17:01Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARA821100499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a928e32a7035e405a113280bc82d92d2448de497406eee389c275722827b081. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARA821100508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58be4217af09f5c797329eed165119e2e1bc9ebb8877a6b8704c0985b9ddf952. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:50:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEBL61230232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0467ef640a39c52767beb4702ca1ab2a879a9cc166930382db10a69177acca5d. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:41:48Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN721204761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x344452b10c7498e948ddd76f314b5b5a82701444d767bda2318bc7d1d18c9891. Chain 2 (Bitcoin): anchored in block 957540 (2026-07-11T08:19:50Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6MZ1589411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x311a309bde7e627b14c5fc8c532db7c2d71f291d2683d3c70e722aeb054187b9. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6MZ1589412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x585a4253536a27b4a49b66f89ef29709643022ebd1a1b403e0cc50d731ad4b11. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:06:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6MZ1589413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa16ea8c9a74a49a96ffb77cb46b2df0477465a128b9a96d829988fa9641b4d82. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6MZ1589414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a2a10ea681a6131e56cc305b09adbbdb702700435b7e38e013db9dcb1fa0f23. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6MZ1589415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5521e46bd3700fa4c0d87094fd4ba70d3d8fae802fec56be0613708d32ca1380. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6MZ1589416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1133dd3db6a1245aa4003590db06571140e207ebe8f9efad9d4f087c3872a07c. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6MZ1589417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91d762260ed5f6c8f5641e961fcfecd92e84ffdc894b11a2890f573c489e8cf7. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6MZ1589418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd09db4c7be1659a1380c39dab20f868e46c2cbc7c2344aeac5884ad47b46357d. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6MZ1589419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72fcb4772cc0ce6d81c787972c90fa74f121887e3d30912cd6507025c26cd660. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6MZ1589420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x647f16fd9bfb3ba0d3700417f2bd1c700bec1cac85c842c320eacc7b6e89c5c0. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6MZ1589422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0542d66a9ca13cdf0b26cc6f7ce419b7734c5eda7ae26ae91924dc0265918bf. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6MZ1589425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3396bd3036042aedb78b9cadda2e3c4892db3efea5c54f3813d66f57349e3ea2. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6MZ1589432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacaeeae8812b6a45fe7d2f5a97343c1b59117d1cc2b68627d8674c9636b204bd. Chain 2 (Bitcoin): anchored in block 957540 (2026-07-11T08:19:50Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA561129285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad02523c3edcdea479807e94ecd745f1047f07f4ad6c29496c4e7cece2341737. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6P41448932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x141a4863fbf0a4ff937b121493c5acf86520b2d4c5cde267d263352230e45946. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USV291464356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d6b38148b79e857a14a877d946d2cd560c9a43e5a29c0ac13f87f2b02fa29c3. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6P41448925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f6c09186ad2e3708bbaa37aa342cb83705410f56e88152262373a70aa10be62. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USV291402814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62c6b8912efcd4b4ab37ed5682efdfb5188c71fc76ac4bbd5bc4155fcfd781ea. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USV291464307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77c87c77d6356f4026fc9421efc306a57b55797f44c7b540e9369b595e6cd0fb. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T22:02:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CA5KR1720090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90bfbd7b7528059e1f634c94963f4502e8c636898507b57d2a25aab6dabf2115. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CA5KR1720091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcac962a9303904f91baa0c54744d4db0b40a174db24b1a556156ed106ec9749b. Chain 2 (Bitcoin): anchored in block 957540 (2026-07-11T08:19:50Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CA5KR1720092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x778c96846376de302e7675109ebd6e377ccc026cc7f68c92fb8f11bf547084f5. Chain 2 (Bitcoin): anchored in block 957539 (2026-07-11T08:09:42Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CA5KR1720093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8949866619ee0d08074bae5992e73f858f20597156bc8eae346ee38fe2a1dd17. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T10:09:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CA5KR1972677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1537f28b572850f177cd6b90e1e8af93866a656712c58b15cfa528d8db174c1. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:39:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CA5KR1972681.
Rodolfo Biagi con sus cantores: 1939-1947
Compás y Swing- Rodolfo Biagi y sus Éxitos de los Años 40
Greatest Tangos Y Valses From Argentina To The World
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff5f16c553666eee7d89a06b238e16b4df54f1a7cc025c8735ec3811bfb239a8. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF049501957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa20bc27fd476478659293e2e27776cfeb64ee9be9446506acd0034e06ce2e3ef. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF045100009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbefd4036e168296acdaa9f63ca21b1ac2c4018a953cfd3e8029b4dfab3a5113d. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN720100266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x564165ef3a5a82c963a0ca50b071f318e877162a34d5065e40d5551c3aa714ea. Chain 2 (Bitcoin): anchored in block 960173 (2026-07-30T00:11:40Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ART340900203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2963194876bfaf169062a797bc831e315c3c33e40904bd005c43a6866f18b619. Chain 2 (Bitcoin): anchored in block 960381 (2026-07-31T09:50:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ART340900224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7258bccf73f3090969ca8036ad6d81ea7ff96eb1a040b27d111e0d0d0c4b134f. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CA5KR1554547.