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 0xc1aa51affd0b34ea4d31efc5a84e9101b6f156b868c58a4c936185e60cb43e71. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0a171a6e-59db-4c87-871a-c896d4ed4da6.json and https://artists.proofprofile.net/proofs/artist/0a171a6e-59db-4c87-871a-c896d4ed4da6.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 0x732fcec355db77aed0abe30b428c72c45cad01b63bb27255537b51052169f536. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/US3DF1736526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda90316b6cc1125f4afcf8e4731128bff048d5c459c8913a51be141c3af9bb12. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/US3DF1736528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b6ebe58afbaaab8c0db660fb6d7d7a619e98751ad5bf696b733acf4f73cf7b2. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-20T00:05:14Z), 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/US3DF1736512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ed23053e8d807ede926f7d1a6418f7927726cf2d3bf4eeb05b064dec061c53d. 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/US3DF1736515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6b03bb30eb7d1aa35138d88c445114be0508617f3160629c4d7236763e42b05. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T16:41:42Z), 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/US3DF1736517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2b6c4ee6e6e022f16e08fbc5d0b94dd85f6d7a28a5c4a90846f43ee7de3faa7. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/US3DF1736518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59d612d07f0d9415922d2ff661a5645ec12ce9ab0e790b323f451a00447a099f. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T21:42:32Z), 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/US3DF1736544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84969468b09bfc37496b7d4ade09a53cc8a5f6f494edbbbcc4f8f0111f471e79. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/US3DF1736542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4d467bf32656aefe74700284513fb5a097b55069524258cdc7f4bdd70e2b287. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/US3DF1736508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f8a4e1d93b5c0f48a971d41f0ac73433bb5da4a28a130808a87207471cdb5a6. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/US3DF1736509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cca3c23c474ad18277bd005f0bff8f16ebd7b7a8c17bd25e3add682b0636d04. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/US3DF1818873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9128d6c2b480449807daf904823bd07d918e36bf29aae8e04c6d9b32512f1db. Chain 2 (Bitcoin): anchored in block 958510 (2026-07-18T06:38:22Z), 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/US3DF1818876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5bf6d341e3427622e09908b04dc4eb7fb3a1c6a990a5d52e098b8e3d3114c32. 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/US3DF1818878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e5e0a96dc63335ca1c7aa90461e322128a9a4242778dd669f5ab1b480fd463c. 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/US3DF1819034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65a67db1d56584d32056d04d86ee63f9aff288c7fbd5c6bd280508aacb3ad4e2. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/US3DF1819035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf77aff6d1b950dabeaceaacc542c2a996e6225550d02d7fae45e10d1c9433d7. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/US3DF1819050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeae8bb33ce87d3e4cead3036ccec5204290b1daa0ab4cf34a17d09bc40968574. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/QZNJX2001456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb20ff56961f234d10eb9df331f89edc01731249237397c449da1f0f79b0bbf0f. 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/USANG2153135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc462b6f4766701bac5379128b3e89e0f0ed90988676560b6f22ccfb9eb99e21d. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/USANG2153138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71a8d34032f1e870a61ff978f3f111ecb85129d7a957d3846304c97522a97801. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/USANG2153139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x384e9fefe105541a6e6a6d8f242f52d5b82f8b7b1721e35f7fd8a9b7ed44a9ad. 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/USANG2153142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47391b82a3d1d5d2dd45a6d90c01e5eed0b68531e67dd447086a4b890f160d89. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/USANG2154002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14cd47c7b93e124f9fc3e1aed9ac55ccfca4dfc628673f317b7467b4545a21e8. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T06:37:59Z), 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/USANG2154105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf01181679414a3fbefb8bebe518702cb06f7ffd0885e629902c177fccdde351e. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/USANG2154109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe0a3794df4d488f7a480e63bae9ac29d879e16c7e38fc07b5cec6b04d1c2436. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/USANG2154110.
Cuando en el Cielo Se Escuche Mi Nombre, Vol. 10