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 0x0518608ca66a60a11a192b37b79a4034b3de255c1accff4d43d5e5e9629fdaf9. 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/edb9f2c7-6b5f-4d5c-920f-6b193fbf050f.json and https://artists.proofprofile.net/proofs/artist/edb9f2c7-6b5f-4d5c-920f-6b193fbf050f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ondas Alfa Dormir: Música Binaural para Dormir, Sueño Profundo Ambiental y Ondas Alfa para Dormir
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 0xf18c60e84d94aaa47f322525ab35bed336f62de310e53c63616c239875bcd104. 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/GBWUL2167696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2995a01bfbb1e639e09f3d8b5d9ff9521e6ff094e1f395acd7ed7a84526da709. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T02:21:04Z), 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/GBWUL2167697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80bf17cb01a0c60ca40a80a33bbd69b200c8eda7a484e92e89ea13386a080b59. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/GBWUL2167700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd03616b136664b5df83799e002dae40ab2516b43c9d1ad857a221969aad90ec4. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/GBWUL2167701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f52292f899e366698595a5581d2adac5955a3d6ffed42a9c99412c3457cf6a4. Chain 2 (Bitcoin): anchored in block 958390 (2026-07-17T09:35:49Z), 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/GBWUL2167702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb8130a16d769fc127f6556c1a69fe6ec51e380842a3e44b4560011a20c8a983. 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/GBWUL2167703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69817b5d89e42484c4ef357628e1bab7c0f087691a715c1a7f9bcb5de048fc77. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/GBWUL2167704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42a162b9b6701c727c4d362c97b72f89a51c15e30db1d4404f5a7ca20c799343. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/GBWUL2167705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaacd12dd24ad3b1af251769644733c0eca85f34d4c7eebfd71109eaf76f99f1f. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/GBWUL2167707.
Ondas Alfa - Latidos binaurales para dormir
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefcc448376fcfaa53e463680a005e65797229698df60b812295e154e77c370a0. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/GBWUL2167708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4bf45818993d9e8596d02259f7f9ca9223acb5cfc6cbacb1a290b7cee327c18. Chain 2 (Bitcoin): anchored in block 958130 (2026-07-15T11:22:54Z), 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/GBWUL2167709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c2e143f483026ce03eed17ab113024c239778c3ccdcc3d32581ed9a7490fe5e. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T21:39:12Z), 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/GBWUL2167710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c88d40c424492eaec9e15ef418ac40b863778394a9b77109a4a686208af5b0a. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/GBWUL2167711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x907272b6832003fd1712e26f51afc4fb5ded7c19d947f4a4ad224104be08b644. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/GBWUL2167712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d2b98baf79c1ce760f9861669bdb2401f1841b026022dd5cb330f96d5847bc3. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/GBWUL2167713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d6c0672cce507bfd6d786cdde6983d1ed58874b410d565dd50b94bdb22571e5. 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/GBWUL2167714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5055bb4ee855b6c98a4a94a1c2f58117c38b0af45f30258c80972ce7fe17234. 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/GBWUL2167724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2aa25c0c3c698cd47b276e1f575725c80a334255dd28b3eb7f620618acdfc7b. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/GBWUL2167759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68ffb04472f7419660da528f091888938157c78632560654125f3aee18cd1e47. 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/GBWUL2167760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99a94ef2d20fb6ebd334bca1167e5734ef7a3166c61d59653329a6da4629437b. 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/GBWUL2167762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57e598adee5b37d35107be00083f06167a602f5fc44ffa59bb5de58c5f4e2203. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/GBWUL2167764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31160ca7cdb8ed1cb22f292d4089c1132ed3d54cde207474a41a9cac91488393. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/GBWUL2167765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb1fa11438ac88e15e6f6166232205210c5a5f76d792d99404a6255e82936fae. 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/GBWUL2167766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdf62e86532e66b07cfb4ba4bb05f28db879cde5d7e1611561048fe327bfa3f9. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/GBWUL2167767.
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