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 0x87cc88764124c4536ffaaeb967541d2e4e859f0910df826c4f6a4bc6774ca8e2. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f5ab75e3-8dc7-4761-95ad-5fe8b1ea1835.json and https://artists.proofprofile.net/proofs/artist/f5ab75e3-8dc7-4761-95ad-5fe8b1ea1835.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Himno Real Betis Balompié (Piano Version)
Himno Real Betis Balompié - Piano Version
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 0x6054e47a04d39c314aff2b5b7ca4b733e5b027c8dc6bb3198116b2445a3f57af. 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/AUMEV2181062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cd9e1834af75e58afbc241fa7289d878860ad70a0046e735c93815908a428d9. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T02:31:22Z), 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/AUMEV2292412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x988b7400267c4e45fcce68dc8b2e662654479c0c1f7f01f99dfb948de6008256. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-21T08:57:01Z), 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/AUMEV2292387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cf01bdf00c8643057841fc4645995f7b000da86bd116587b87ccdf5c3b0cd86. 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/AUMEV2292393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c0308a4514e2829e7b41f0144c98e5b2bd88d137152293637f1b6d36bc05c6f. 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/AUMEV2214583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36588d50bfa51d7702f19d6f84f03f7a5167b6e1ac0e54897511ad3d5f0e3547. 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/AUMEV2230088.
Comptine d'un Autre été: L'Après-Midi (Felt Piano Version)
Comptine d'un Autre été: L'Après-Midi - Felt Piano Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86f389d5261cd1bbae4d261a462401484921410425a01a5f997eab7bc10d500e. 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/AUMEV2230086.
Himno Centenario Sevilla FC (Piano Version)
All I Want for Christmas Is You (Piano Version)
Modern Christmas Songs for Solo Piano Vol. 1
Classic Christmas Songs for Solo Piano Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea0b303ac992d62258436de37bf6ddb6ca3b519a3ccd18e1c05b2cc421f212ab. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:39:27Z), 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/AUGBT2242559.
Shakira: Bzrp Music Sessions, Vol. 53 (Piano Versions)
Remember Me - Recuérdame (Piano Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x713ec7b42942be8981b75574849fe4edb3bbd1471e23c320afcb32d74a917d90. Chain 2 (Bitcoin): anchored in block 957759 (2026-07-12T21:46:51Z), 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/AUMEV2312895.
Remember Me - Recuérdame (Piano and Cello Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd54685645220752fdae9b0e5262838b0853be1bdd904ee22a3eaf9befbbee85. 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/AUMEV2312896.
Himno Club Atlético de Madrid (Piano Versions)
Curro Jiménez - Sintonía de la Serie de TV (Piano Version)
El Tiempo Entre Costuras (Piano and Strings)
Mi Madre y Yo, Dos Extrañas (Piano and Violin Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18dcee3ac93ba753c1478f3b6a16d4fa8b422a1dcf3bed9c3de9709696f5a4f0. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/AUMEV2333080.
El Falso Delphos (Piano and Strings Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf583757edef0b23e114e14e0d00c53f4fbb1f893307f2cd75b9f7a15c37ddd47. 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/AUMEV2333093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x129ddf08110411e7fb18372f7035d33ea823cca7b2d35447169c9e8179be86ce. 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/AUMEV2333077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50dda2d5324f9274bbe05c96af148b9edb663c6085892a84af3d6f28a03ef1ac. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T08:56:51Z), 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/AUMEV2333073.
Modista, Espía, Amante y Mujer (Piano and Strings Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9afcf978994a0bc1e2e4ad4bca636aea93b37a280e07063f74d4b3df37116ac4. Chain 2 (Bitcoin): anchored in block 958465 (2026-07-18T00:04:42Z), 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/AUMEV2333083.
The Ludlows (from "Legends of the Fall")
Me Cuesta Tanto Olvidarte (Piano Versions)
Me Cuesta Tanto Olvidarte (Intermediate Piano Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e15d1087aaf416c4385a1676251dfd059072699ec94320ea189c7adc4dfc3ed. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/AUMEV2349664.
Classic Christmas Songs for Solo Piano, Vol. 2
Rockin' Around the Christmas Tree (Piano Version)
Modern Christmas Songs for Solo Piano, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9f372cad8b730e831b329e7c983ccb3c20070a7e1553bf568e7f597391be3db. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/AUGBT2354871.
Can't Help Falling in Love (Piano Version)
Always Remember Us This Way (Piano Version)
They Don't Care About Us - Piano and Strings Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf87dba23d90ecc9b5ec6c9b0a394546825ddb1c2dc9793297c8ad54f5a3d6ce. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T16:16:18Z), 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/AUMEV2428745.
You Are The Reason - Piano and Strings Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe556064b8f4cb1194a84b9ae6694c47481e718b2cf911b2dbb461d3cb6fc346a. 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/AUMEV2428768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0beb489a6075439cf2909e232096a76c5069e39d5b8f526d57d48aad57d23c9. 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/AUMEV2428769.
Hala Madrid y Nada Más - Himno del Real Madrid al Piano
Hala Madrid y Nada Más - Dreamy Piano Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31b2f4ecaccd4c3baed98cafd378363c3fc424fd02992efcaa4d31311ed717a6. 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/AUMEV2585203.