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 0x28ba0fdfd7a6e23b7ff2101ea7f9f37eb4aa45f8e2cae395049c96a53d650484. 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/6e4b1800-a61d-4fbb-b3f1-d2380c942677.json and https://artists.proofprofile.net/proofs/artist/6e4b1800-a61d-4fbb-b3f1-d2380c942677.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
El Chango Nieto... La Gran Revelación del Folklore Argentino 1965
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 0xa8e3be012d4b61dbbb635f312c79c14801dba1c5a188c170fa2928abf5f5e74e. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/ARF100100014.
Revelación del V Festival Nacional del Folklore de Cosquín
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bdbcea6576f65c76a0759c62b3f447e4097ed17dedfedda5837eb2b8a62da67. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/ARF106500182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eaa69eacae59f67d753af22715eea13effb0f7d5eda0c85eaa98f0013ce99bf. 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/ARF106500183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f2be416fe1099bcef7de22dfc344a8b035b60592b9283547d1c2291611c646a. 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/ARF100100016.
Cantando Me He de Morir, Cantando Me Han de Enterrar...
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d8100a594b9f6857673c345456632cf0472eb774480edfb51d437cea432411c. 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/ARF109903248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa755473441734a2bc415aefae1cb453d7fae4c4d1d2d715f1dfe37dd007522fb. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:42:16Z), 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/ARF100100029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7165db40c27d6b73e3e4564e32c81af62857607f6a2a3e2c09c5db852d7ed71. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/ARF100100027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a5c4fd2527feef85dba76ba5e826203248610d0e9115e8b1154b328b8fcdcc1. Chain 2 (Bitcoin): anchored in block 958653 (2026-07-19T03:54:23Z), 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/ARF107100217.
Los Más Grandes Éxitos del Folklore Argentino, Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x659b0094acccdc820d40eb5417a9d0e8cdf91d6fa8d03ef7cb600804f500c473. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/ARF100400348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2483c744d4b8b0566b13b5c36bce0990c8a9113efbcde06b0f0c5bb3dc6919d4. 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/ARF109902863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc64ea6a85d0595c5ca47a602c48b591952ae06bbdb2990b807db69e90250888. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/ARF100100032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe645e56ba96d8d8f2b3d139e6da24e76bd4206b818a361198ce180869cae4510. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T22:25:46Z), 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/ARF107200292.
Los Más Grandes Éxitos del Folklore Argentino, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e6e1978a902a7bfdc2a82dca7ee993a30f28a522a266b5bde50bda264604423. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/ARF100100035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67032076048554a5033fc845f156ca42c954469843594072c55395d3f98a93ff. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/ARF100100036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x400a422bea010e9775f913644a3d5c5f7d1396b2d02d115087ae55f4deafea19. 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/ARF109903241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13378e5d727e0a5f47f676c028dc79d8e190e7ab2c55dbff6a1f9fc1ab93dd33. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/ARF109800822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c9e6d35daa28b21bc55fb2597206e55495dc7391987057780d9a390fa058608. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/ARFSB0800506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb11162d0eaf464d10b07e6a90b13ea1c93a09d7e124053d3cc8e3ac67cd6ddc4. 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/ARF107500275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb4da0432eb90714c27ec535376d80d2cd4c9113493a8b446a82cad5cd0229e0. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/ARF109903244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b4113bc8cce6af1863e39886ba4c218cd62b5ba460b9bc50a6b6cf14bb57359. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:29:18Z), 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/ARF107600202.
Los Más Grandes Éxitos del Folklore Argentino, Vol. 3
Interpreta a Atahualpa Yupanqui y Homero Manzi
La Historia / A Dónde Van Los Pájaros Que Mueren
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a45077db43ff2ed532bdf576a98a5ecc8f07d2033f64cd68ddffedc40178197. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:51:59Z), 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/ARF100100038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf51acccef47361fabb17ecbdc7bf39c8a6278c4ac155332dd307185277a67440. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/ARF109903246.
Yo Soy Ese Cantorcito, Yo Soy el Que Siempre I' Sido
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa97265b292ba52fcc9fc6135230612727df5cb4eb9eef8e0b4857866f32630fa. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T06:55:58Z), 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/ARF108300103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7662d6bdc3ab536c840c2d11f4127bd028a2aa9f1cc80da0f0c476b2d4264ab. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-16T00:02:03Z), 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/ARF108300106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b843903666ca20d2c39dd7121d3089f5c453ef19269e6f9085183777b4e77ae. 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/ARF108300109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x255bbf26368c73264409f9f6a584ea468d87e1c0f4bcfb7aed906015f3b03dec. 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/ARFSB0800503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf44e445d93e032fd4d34231cd641a39e44bc0433a56cd4bf98c1c9e9ddbe435. 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/ARF108400161.
De Vino, a Vino... El Chango Nieto Interpreta a Horacio Guarany
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea0edfd39f65b6d8ceb04e6e8823d7f96a8ddd10d6237e750a9d53a32e1845a2. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/ARF108600205.
Caballo Que No Galopa (with Horacio Guarany)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbd28acb963b77e594348a4d7b4d24f54ed4b10d534a3d2a2c27eb6e7831df6b. 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/ARF109903247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdaa16399e9f4d5f7040ac933e87c54bbef763bfbf4188067d94cf5e309bb3a1. 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/ARF100500049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x056a18b1fa590754e7a763703fffa01afb9af783f8a208f9a7f760d06162fa0d. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/ARF100100013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94e10ca292c0d5d2a114bcb2ae719aed8c476f1ea912ca0c4f1efb5d87b1ba1f. Chain 2 (Bitcoin): anchored in block 958681 (2026-07-19T06:14:54Z), 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/ARF100100015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x247189f66274484c922e258bc8f47669e38de5cdfec4378833d47ef169f2cfa5. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T11:47:48Z), 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/ARF100100030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f2be416fe1099bcef7de22dfc344a8b035b60592b9283547d1c2291611c646a. 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/ARF100100016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb514c4341a4c7877de9d8ed51b1305ac647dd943e27ca1e385d2674d1bdcac27. 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/ARF100100033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb04cf2872c0542cf79306d259b98dcd4dd1b3b316a1fee8249b29d8914b78a8a. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/ARF100100019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd52113501e1de5551abb1c85d29a6b11c71d460fccdb7468d638ff7378c454c7. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/ARF100100021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x693da7d95ee40ca97df396bd1d5bdb23c3e8d55eed69559df50765c4280870cd. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:36:03Z), 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/ARF030500132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c4bfc720a67586c82921ef0268de12a76d6236d38524b79e2c859cec1f25c10. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/ARF030500133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd52edc348ba6e0d00d74deb643969a66803d3c2d3599a6dfe96ddaf83043166f. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T17:43:42Z), 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/ARF030500136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce22835c6fa469cf2a0aa5dfd96b729d4dac03e3d797a7233f299ec305df7f96. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T04:42:02Z), 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/ARF030500139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0438b4c06fb032f227ee0ef141725b933d300c8d2cc22b8a9759e807d85a9bc6. 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/ARF100400342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e53db0eac74626f40cc44d2caf2bab1a3a32f3c1f7f0ce003cb7559c9b48a93. 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/ARF109903245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x659b0094acccdc820d40eb5417a9d0e8cdf91d6fa8d03ef7cb600804f500c473. 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/ARF100400348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc64ea6a85d0595c5ca47a602c48b591952ae06bbdb2990b807db69e90250888. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/ARF100100032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7dbe4fd44c409c9fae15d472727d01c8e9eff4746ad5adbdcd2d8dc72140724. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/USCHR1312951.
ARGENTINISIMA VOL.8 - CANTOS DE LA PROVINCIANIA
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdaa16399e9f4d5f7040ac933e87c54bbef763bfbf4188067d94cf5e309bb3a1. 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/ARF100500049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa219287530714ac7a07d36790b1cabb385296ed409e4caa75dbc69a655392ef. 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/USJE61300737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd33eb86d60a2266b842dc05ef838f6a50edb5f99093662b57de6f7b210f467a2. 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/USJE61300739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02d7239bc60e84a4cee590d862589af3a1bad37a86409e769620c28fc202979f. 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/USJE61300743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0880dcdf945bbc632dd966d3d7183bc44a807e9a81a11fdfd832d03fd9f5c6a3. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/MXF170811517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbf8f7cc38273735e26e00ca97fb317a7eac108d9f47dc6929f2f3960b4fdd4e. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/ARF100500048.
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
Como Pájaros en el Aire (with Los Trovadores)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39f11b9729b9aff9b1525d34bc34139185040e66095648f4a9140811360d2ac2. 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/ARF100500050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50901a0aaf6c8d22eb3855cf3fe3714863353964321eb256c78ae212981f22f8. 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/ARF100100024.