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 0xe02bba62082ffc22271598ff3b177ec6c12113750e3807dc59c668fc8ee7558b. 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/3891da38-e065-4a56-be07-1a432451e31f.json and https://artists.proofprofile.net/proofs/artist/3891da38-e065-4a56-be07-1a432451e31f.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 0x68a1b68b3310fd9debe8315b17fc0c8cff4a449c74ec2417477935fae6e07841. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:22:30Z), 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/QM6DC1997116.
El Amor De Su Vida (En Vivo Desde El Lunario)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7775abd9534e6d0aa60508c5df2ab6d50d618f46726174755aa0941fbf2ee19. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/QM6DC1999637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b611e5cc6d449558a9cca53833f30e011ac7a9959ead014dbedf375742a893d. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/QM6DC1901748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a26ac4c6be6296328cf45df58200006616e0f76dc24e987ddb1e88d74fa2a14. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T09:58:17Z), 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/QM6DC1901749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd912c5b9de199931aedb2ac084b2de3ee07e3cac6454111689a5cf7989dfaf4. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/QM6DC1901760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x625cb8c82e5cceec70656c866e79e71b8e96c057effbac8ffbbb817eb5e6a4b2. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/QM6DC1901761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb26c0ccc3c2c161ddf3217322116bb3410856e36252659f32eb02fe67569739. 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/QM6DC1901763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5b31477816955eb6cc3048fb5a71a1d701be0059fdd31ffe99d6d54c59c61c3. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:37:48Z), 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/QM6DC1901766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a26ac4c6be6296328cf45df58200006616e0f76dc24e987ddb1e88d74fa2a14. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/QM6DC1901749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e819bb78482fe5acad988d5290e6f13f85950c894db9a8c772d2fde35867278. 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/QM6DC1901750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecb35dde9d66f5de413cce40b9770dbf1eab007dd9f7c78237a7f0887465974f. 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/QM6DC1901753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf73b1ca8a8461a447900f686a4e159e3708da983d57f6aa89a7d15aa8bb02774. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T18:07:02Z), 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/QM6DC1901759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec40cdd01b1400362a84ded41194052883aa0a89e460ff962b7f365ec2b0b8b2. 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/QM6DC1901764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69087bc8d07ab391058b6afe4854fa46195e4f5de2af0a21eeb8176dd8b3b950. Chain 2 (Bitcoin): anchored in block 956620 (2026-07-04T07:11:13Z), 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/QM6DC1901765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36a3a78fee0f867d618a40244f6990a88419253b48064440a108f484688d01ed. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USANG2190213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1826d88c53471e096e95ff32890533ea66ec7fb2415122299728c9213853ae6. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/US3DF2232207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03e33b50abf45d3b51b66b3e004817b0b46e6c5c95db404cd1852df1c79e8d4f. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/USANG2220915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb15f1b271b868c76c23902f46936edef61173fceaefa85823ce5a16e09fd20bc. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-16T00:04:46Z), 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/USANG2220917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x068de110e7cb52735cf7bae7555cd4492a3bfb795775f0286dcec05ce772c94d. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/QMANG2226844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc73655893fac3dc13edbf5fba106a8595c3413ffacbaf805d5c0d00e04f60760. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/US3DF2443736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6592f78131b496bc667ef5e6dfbde53158df8860966f3eb84d1776d59c5feda8. 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/MXUM72200020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43f85ccf8cf0106c3b94f4f058728cade1618853c3ec8c5237259b2367548bd8. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/US7VG2094495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad6be087e5b21c7a8a7828e9753216bbf4dc5f3cc4e5e7c7a7b35068264303df. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/MXUM72301933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0731c619e262938e710a32bfded4ddbfce518d66d0690139f6b5388efaace7b3. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QM6DC1999789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b1a5687e76abf1dea299d0bf5a0b3785c05579f48258f80bc7d510ef6be8d0b. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USUYG1579722.