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 0xbf66e80a7f13739607ada0b346c6e3fe94d66dfa0d15ac521da52cc7b24b0dff. 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/deae8a03-c498-40e3-842a-d40d7f07adcb.json and https://artists.proofprofile.net/proofs/artist/deae8a03-c498-40e3-842a-d40d7f07adcb.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 0x8f96dfdea8eac2819e41e01756e21c8297a21114468d2c338155c8049c6db909. 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/TCADL1890904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e6bafd3a0d57bdef5653ce802de6040bf9a4e02bb5951e3fa9a2bfc5e10f5f4. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/TCADL1890908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1130a667175f8c96a5943ba23a89f06ea489403190b771f1b6567b8440e6976. 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/TCADL1890909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc56a0d21a4359ee5efe6db37b6f8a0c89cc7988bc7865f7d41645613aefb76e8. 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/TCADL1890910.
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 0x8bd7820dbd8c5b697b0c0b31ad0143134dd0c568d430f04dc1dd0b7e9f4101c8. 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/TCACN1693544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05e51cdf62473c14fba43d85f9ee3ec0555a7b59fee9bbe8ac572c2499fa417b. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/TCACN1693546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4571d135a3153bbcb3f7e84a0f4a5fac9cabfea42b1eddf3385f093478be71e6. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/TCACN1693547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x702b5696054aa4780f37c9a2e6384f4d6ab6e4edbcd256018db341072e62d9bf. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/TCACN1693548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50099d98f6cc4e128b89e8a3b687e82ded74df4848bf3abbccfb7529fa199398. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/TCACN1693545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1be9b39e64ed949fc050fdb91869027e458f3f7c798159d6f9e1d256ff479389. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBKQU1537079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26893da56e6f31a75fa2b91dae36fee32a58a4bd5b749e6eb835f1fb542e78c7. 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/TCACD1507732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05f1ee1d6852fb521c3022faf61190701b23f8ce47bb91694b1ac268fc67e382. 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/TCACD1507737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0747b0eb7bc8409511ec7c7685f892c9497716a0643b0cbedae696ca69050ae. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/TCACD1507738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2178aaf635ee498b619ff1707dee8137777452413f398fc009fa437436f65a62. 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/TCACD1507739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b1e764938a5637e4ef32fe5e42cbaac611034bfc4b5d2ef8d4faa517f097d13. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/TCACD1507740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06b0b53d62d4ed18d7f89a81c2dc6ff1f0f33ed8e4c0c341963cf80c76a8f07e. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/TCACA1475055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7474347e75df62ff06be3ab1104a08dca85710629dd353d04d541b8266ba968. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/TCACA1475056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x945fe81839406ffaafa8be646a0c105d2e2290f0823ee052d7154d5c57d8a2cb. 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/TCACA1475057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24459831619f7b85f3c124d41fc987de915a6084bdbf886e4b84f01dede67939. 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/TCACA1475059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x089cb778954579fc707a21e81f0ed8a3fbee712957194ffcba6675ebd004fcee. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/TCACA1475060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fc50d91ed1b453c379f3da7a736d4f01d2a9315e0bdbfdd08516343effccdcc. 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/TCACA1475061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x635147806f401ddb7dc2a30447d29ab5f853d3d9a62da5c258c0e4763d059416. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/TCACA1475063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fda0f4ab07e2c0b5e7f2caa580cb5c6fb0a32f054cf77ad3fd1f7c9a1dca936. 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/TCACA1475065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68ff6da9a26c93d63e3f9a70ffe634d97fa86c7398b02074cb64d2dbe4d48c08. 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/TCACA1475066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e155ebb7e2be4656a2eae0dfcf69cd8aa6363574fa0b06845b0a3f5967939a9. 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/TCACA1475067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4020b5da8e7f48b945ba87b249f7c17a040bf911d1a1badb261881d10970529a. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/TCACA1475068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x756fe4892aacbfe98dc0341252165518acf7d322ae1338b160967f0fdd55df1c. 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/TCACA1475069.
Phoenix (Rocket Pimp Remix) [feat. Nick Sadler]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f0f9985b223c729c4ca3e8eaf447bd4e04145af7551d69656d093405cae7ba5. 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/TCACD1598664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc99dad855627a985c3e3b9a4e860675e1fb746940b39e30dcd243881b28e2bfd. 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/TCACD1598694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36e5294a26efe16620956300e97c5b4c64543b330d32aa530f622b12f331e730. 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/TCACD1598695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14e2a17d9b80b6a04c50091533c372416fcb1c7557b54e61f3eb2711e6711775. 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/TCACD1598696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2891ef0c5b6c7eb49ff10b9c02cbd721b91354d917dc122b50587186d43d9bc5. 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/TCABY1475322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b14155a1623e6c7fd875d9893dbc211dce67f448a1e486d2138b78d18b7fee3. 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/TCABY1475323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a91ed3f1355726d41898503ef1b370632d426db0001644d3c0ee95330d05a89. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/TCABY1475321.