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 0x75caaa3ae32d26e5aa6d4d32c4b2822f6db73efe054333abc1f9c6de6fe16597. Chain 2 (Bitcoin): anchored in block 954553 (2026-06-20T11:51:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ac7ff94a-1882-46ab-974e-0a660ac62702.json and https://artists.proofprofile.net/proofs/artist/ac7ff94a-1882-46ab-974e-0a660ac62702.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 0x7f0c6acaa286a7af2fc713557e9963eee8f8c8699884b6decdb7e063eac9d108. 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/DETL61408535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00040c30297935bfd4d561da2367c32a2240ca2ff45f1ebb32c1116f3e7c2fd7. 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/DETL61408556.
Aventureros del aire (Intro) - versión de piano
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7481a1b8fcc6a86587f3633b2d60fbb6ffe802fed8176679c878b8c716f3b551. 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/DETL61408553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2c381b13c0af1c4deee5335c601242311fce260400a79119731f40429092ae3. 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/DETL61408539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd3a280f529b74bf57ac8a2d122c190cd1dc3e616bdbdb1d2aed331a7809c9a9. 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/DETL61408544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5da442886a7bebef7b7eccff966620396aca27bdb9cd7914d89a738269130aa1. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/DETL61408550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2afb24cef18739a8da8c0dbd8c202146fd345481281e12efc11a2a01174d2da. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/DETL61408545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bf905f3359a88835f684242f4f511633b35a8907c26f2926592820fcc843775. 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/DETL61408584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcab6b81ac96e0bf4d436642bca8be74d7706bc801e186f1badafc2c49d44609c. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/DETL61408562.
Tiempo de Palomitas, Vol. 2 (Lo Mejor de las Bandas Sonoras de las Películas)
Terminator (Tema Principal de la Película)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0b7dba23e81a843777b0d0d772c08ed0c31471aab9729dfc7cc0776bd980e47. 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/FR0W61558117.
Juego de Tronos (Tema Principal de la Serie de TV)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6223924f12c434caa235b36d49f0942d239d30c6963542d49c5a3e126fbdcf10. 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/QMVRR1101002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x985b0b71316a87172cee4a83fc8dbdb8d0b8081f588e1d49a6f23f0b5010dc4d. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/CAM460804171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3a7ab599dad413595e36919aab26124a0339f90830d3bdc925d01506723715c. 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/CAM461001525.
Pretty Woman (Tema Principal de la Película)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7558d14915a582c1260ca6283659572f15ea2f32d955a17d75d4190493716a78. 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/FR0W61558270.
Piratas del Caribe 4 (Tema Principal de la Película)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dc5cbb75da4b5521f337bbc03bf68668b389b3767ca0fd02a7e290abe891403. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/CAM461101486.
Las Lluvias de Castamere (Canción de "Juego de Tronos")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0be2d007f9fac8123f4419afe9f1cf46fb7cbccaa7c8efc7b41ebafa0978c0a1. 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/QMVRR1400401.
Superman (Tema Principal de la Película)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d221d8aebbda9c8c56cfb7948ae600cf1b080a5e933e344f582552f236a2aee. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:30:10Z), 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/FR0W61558295.
The Walking Dead (Tema Principal de la Serie de TV)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7cdfaedac592f3935f5e994e5a581d65a498f32e6897a59244d3398f0603c0c. 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/QMVRR1203729.
La Hora de Bill Cosby (Tema Principal de la Película)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f5552449d0b77f8689e7f0fc8622a4e94b9f53af0a100db077e957a0c5e89dc. 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/CAM460419330.