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 0xa69d6ce73c345b8a2b33e27407142e4ee41bf3154b62c0a9ba72beff72821dbf. 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/a489e438-a8c6-4745-8950-f78048f1ae2c.json and https://artists.proofprofile.net/proofs/artist/a489e438-a8c6-4745-8950-f78048f1ae2c.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 0x2f6edd01548f27f8c4815b843f8e4e7c032d82013d96137f1d61e3153a6bd48a. 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/UYS051100187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4fc8947dfba6ed15eeb7a36b9ffd84a7acb9a2ff83565171eed99ed681781ea. 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/UYS050800320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc21cad17a1d983619f4abfc7453c81a5548d3098a4a9c4c40a023d59f611c8b6. 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/UYS050800321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e17c45379f14e63b6f50cec615dc59105a977b0a01cf070c67231978b8973e0. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/UYS050800322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x868d5b18fd5439e9ab6507d1fc0bd1664f3bee2b91846af4775fe74fd6ba6c8d. 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/UYS051100190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02575111cd2cf6b68347e27dc5a39f641e71c0e6dd930529b4236ae21278e891. 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/UYS050800324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x574f8c0843299169cfe2b97764d32d85621d27d53121ad7e87f4a1bd09822082. 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/UYS050800326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4a54553b749509ac02a948e8776b6662fa2f95ef4344cac86452aeeea160ac5. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T17:38:58Z), 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/UYS051100195.
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 0x84efd7cac6ca02c472052b0126a2a9712392bba1a81f6acda237885fd0b407ff. 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/UYS050800323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa244b956244d51bb0a1bac3e9eba4091a59c5a68df461ebf5e52ecafeb84cc3a. Chain 2 (Bitcoin): anchored in block 960173 (2026-07-30T00:11:40Z), 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/UYS050800325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf1d35ff95e0d4cbb28d3b8792481ab0a3a52a23d7eaf290a15519b51f457e1b. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/UYB141610901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9455f2f12811a7a31817f9279af414ffcacb20dce3d1a23e18084932d4417b2. 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/UYB141610902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x436edc3a8ae040724feb5c13c85bca8966630f49644935a4c7ef15339e00ca24. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/UYB141610903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2b29a44a11b76a13cf15ba761cd1ad8c2d914e1b800b7d2e5bc0a3e2275c33f. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/UYB141610904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ce624a4c5ac1ed7c1311cacd6bf33703b46269096974d67159a6d98e311c3c4. 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/UYB141610910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87ab7ae2dd73f0a4608644d6d9e66066fe733175ae1406426b062bda620563e7. 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/UYM122002733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92afa92de5d854c228ae90a471fad869413bfc7aade3c46bf141a1fada9c5a94. 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/UYM122003237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87899b12ea6e7e900500bc931085cb70b835e984351e83aa02c54db94491eea6. 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/UYM122002710.
Amigo Lindo del Alma (Banda Sonora Original de la Película)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x808a445a25b937e7ef68010839dc9f0459ad90110800bf8087277bd9e261254e. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/UYS051900524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd144271f87fa1662ac4f6d8ff10ac3403f3341c306814eeb7600d091a12b7c35. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/UYB141610905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d4b722cd798a8d648582bf64dacc00ef21d5a9dc8b62d9f0df6a98bbde2a53e. 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/UYB141610906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x057a2583f50854d5d0c8e90b4a0db06557b59c7cfe1ad452de8bb56b2a07ab1e. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/UYB141610907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb79000ce247329f45404079deb4d2aeaca26efc73139d15a08692e229c48d8d6. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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/UYB141610908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67e5cbeb76a409c0556923ab534c88b689cb27c6c9fc293228497421f189dc12. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/UYB141610909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2a66fed95117a9bc980aeac4795a8ef406e8de504ca83429774591f6d29a0de. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/UYB141610911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83064398fbae0391c838d111ea89827b405ccada2828f6809a97d5da64419863. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/UYM122002711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6a6b3d8c119734bc8d3009a55b872d5325acfcbd30064e02d4f23ca97371a8b. 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/UYM122002783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x809386533d1c2eb8b4c06830ec25d1c33cc6a1bca9bc4a9c28f6d20fc2adeed3. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/UYM122002712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12feea177ceca74c43dafb68052eab2132552fd24ba62cfbaf6fc5165f5e5e3c. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/UYM122002713.