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 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 0x73e2ed856084b96a05e983962df56c61ad876fae8703db9db379e53f341f45a7. 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/2e7f83d6-865d-48cd-a4fd-59ae077ad52e.json and https://artists.proofprofile.net/proofs/artist/2e7f83d6-865d-48cd-a4fd-59ae077ad52e.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 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 0x902fb2191c46000a9d967d31a7043b32b85571fd2b62eb7e5d55bf8ddfc1d119. 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/FR2X41751564.
Bueno Es Alabarte/Viva La Fe//Vamos A Alabar A Jehová
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0a9b86d2e27781947263e918f1b9db4a1d46bfcb453ee58ada2457e0ae2ce11. Chain 2 (Bitcoin): anchored in block 958535 (2026-07-18T09:42:49Z), 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/FR2X41751565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0a9b86d2e27781947263e918f1b9db4a1d46bfcb453ee58ada2457e0ae2ce11. 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/FR2X41751565.
Cruzando El Valle/Quien Dijo Que No/Estamos De Fiesta Con Jesús
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd64e7c41e32880bd2531edbb6454263dfdbd24e3867faca96869ea6d7f30948b. Chain 2 (Bitcoin): anchored in block 958756 (2026-07-19T16:12:29Z), 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/FR2X41751569.
Bendecid A Jehová/Dios Es El Que Ciñe De Poder
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x175ed0e9bebb2f3441ea10ae7a6f030e7c2c854364f5b735e58d8ad45b1906dd. Chain 2 (Bitcoin): anchored in block 958380 (2026-07-17T07:07:02Z), 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/FR2X41751571.
En El Principio/La Ciudad No Tiene Necesidad Del Sol/No A Nosotros
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf4455d74a7a0aefd512ef21375f7c751fb9f47ba0e6937e736df581e843b365. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/FR2X41751573.
Torre Fuerte/Suenan Las Trompetas/En El Altar De Dios
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cbc98aa4c36f4f57c52a8e039db2de67160164c3bb3887b0eaf6ea8f74a58a5. Chain 2 (Bitcoin): anchored in block 958197 (2026-07-15T20:40:29Z), 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/FR2X41751574.
Gloria A Jesus El Señor / El Señor Puso En Mi Boca Cantico Nuevo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9616d65104d2fb4bdd062350e785e1ce3f4c95431ac9e34e871c4c99c33b0bea. 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/FR2X41751348.
Al Que Es Digno / Pueblos Todos Batid Las Manos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd82fc81781330ab07f8f72c81a04ec187ac3ed24e4d0c66538b217a678346699. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/FR2X41751327.
Los Que Esperan En Jehová / Alegre, Alegre / La Alabanza A Dios
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e8827bd2ccdb5e4c599ee2dd00505378c202a67b2c257bc312c5ea3b0c3b234. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/FR2X41751581.
Cuando Jehová Hiciere Volver / Me Gozare En Tu Presencia / Mas Los Justos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2305b2bcbaa561986a43a13ee794fdff77e2fbc19047e2f443894af4d14afb30. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/FR2X41751583.
Yo Siento Paz Y Gozo / El Amor De Dios / Algo Esta Descendiendo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0930ee1acd08f8914a0c61cfede8c83da4fed15b4a09cd12151a4bac2414b356. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/FR2X41751589.
La Iglesia Del Señor / Maravilloso Jesús / Ahora Mismo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfedf49525754e3f570c9b610c6c3b0b916934662e26635e79ef5389822fd8a21. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T09:04:56Z), 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/FR2X41751591.
Te Alabo Mi Señor / Tu Diestra / Cantare A Jehová Por Siempre
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6de3219c681eb0c1831256b733391a55beab59af86b0938eaddf4a439066d364. 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/FR2X41751575.
Me Gozaré, Me Alegraré / Una Cosa Se / Este Avivamiento
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x666ca1925dc4ea0e416100b0815b696186790f3c424a53f39c9db2678b117d3c. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/FR2X41751578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cbc98aa4c36f4f57c52a8e039db2de67160164c3bb3887b0eaf6ea8f74a58a5. 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/FR2X41751574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c0dc0e2cbdb6e490078de29576c936e26f780027a55dc1da39d08e10a4b537e. 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/FR2X41751576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2305b2bcbaa561986a43a13ee794fdff77e2fbc19047e2f443894af4d14afb30. 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/FR2X41751583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0930ee1acd08f8914a0c61cfede8c83da4fed15b4a09cd12151a4bac2414b356. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/FR2X41751589.
Aunque Otro Cante/Esa Sangre Que Jesús Vertio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1357e8c64de18225d494900d465c693021285c01dfdc6e422923b91ba518dbf6. 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/FR2X41751446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3b0c09a8d91cd296d446915265772b5ce2a019f14f61b09ad15a5d3c0e287cd. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/QM3DF2248865.
Ecos de la Eternidad: Himnos Católicos Sublimes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cccebbff7c00e4a8ae3f33cf10a32612b7b501b53c98cee4e8f44d11b55de5b. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/QM3DF2247441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfda49db9399d0a3fa908cbf7924c9842d28cdd20c3f9777fc125af3c03bae279. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/QM3DF2247452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ed8a4d5582dfec9ce53efdb065aa77e4e292de797285b8ddd452f9682432534. Chain 2 (Bitcoin): anchored in block 960187 (2026-07-30T01:34:28Z), 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/QM3DF2247463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aace453e5cc2c56e86f55a31acc70d7121f7c5e4aa151d765d4e778485107f2. 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/QM3DF2247466.