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 0x239eb31545c1f57c73c3be8cad488a91d940537d166bc1de657f2ccb2af74c19. 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/ef428c46-7bef-452e-b99b-a110ffc90a0b.json and https://artists.proofprofile.net/proofs/artist/ef428c46-7bef-452e-b99b-a110ffc90a0b.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 0xcf9fea31b1f24904db917a49b934fd94aaafbcca8fb374ccc932cb8350251a4a. 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/QZK6F2130510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde4702eddc9eb351073fb664cbfae018c57f45847d2fa7842e1d521d82ec9a09. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/QZK6F2130512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebe2e807474ff668620e3957c6b068a8fc34de8b2b08706ef9a8f034630e77ea. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/QZK6F2130513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06a05a3d512868a63c8c2bf7df58e728c61138ac3b0cea8a956f6d0b045e133d. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/QZK6F2130514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2baf39be59e5dfc01e3c5c744db7cc6352c4d295dc48272b481f0953f0260a9e. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZK6F2182777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5d95490009499d91114535dba40ea712e56b58009da07fe084847b14e305dd4. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/QZMEP2112987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f6866cc4cfe6716d0ba2d6a0500121d19f5858f7e28b9cbd72b9a375ae4dbeb. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T17:52:00Z), 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/QZNWQ2174504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9357aebac50356df1ce8d5b5087bbcf7bd5e6068e7f7fcf9ee9d308ac2699ba3. 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/QZNWQ2174508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbefe5241854cdf136a506377bdb26d1e3b003e6fe5ca4b136df84d06bbf6609. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T21:22:53Z), 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/QZNWQ2174509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f9804dd1a35afba455e63bd936353edf59693c49a7ab36bd80e68e34ff58184. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-17T03:02:09Z), 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/QZNWQ2174512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cd8174eb40c2fadb23f0ad91dee8d8e3af83a4f031198aea35071f79a2eb7be. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/QZRP52170772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39e7ff72c984306afdbbb8d203bab19c98221c696da4ac6e9a580d82532ec8b7. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/QZRP52170773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x355fb6dd7793a0c0561f4ac52e28075d5615a50439ec4c526ce932429ce7cff4. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZES52248296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb15c7d69093450364cb75205f4c2213eb05adbf0492b8b9b152c85063712a5dc. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:45:41Z), 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/QZHN42252376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fdf9e358db0a1f76adbdc1765a6f6c7cfc238a86f1df63eec0378c8508238ef. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T02:06:08Z), 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/QZMER2266371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09672a3cbf91139200ea3ded9a9f29da9223f73fd53799f32c423cfebbbbbed9. Chain 2 (Bitcoin): anchored in block 959080 (2026-07-22T03:00:41Z), 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/QZMER2266372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdef721bbbc6fc62ad295b944249649dbd448c0c82bcc23c6d0ddc155c4aac26a. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/QZNWX2255503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d90c7666df1d55e051c80d56fad15c8bfa75e8b363536b80cb80e31e50a3d3a. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T03:46:23Z), 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/QZTBA2234594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d4f918ae9a1850dae8357808ecce66652b20abfc8f07fcc4bc7b247f325d7b4. 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/QZES82395759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65704be949ff8da9b5ee6d95c9ea218d88615006ad6eec83d3578141afa7f0d1. 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/QZK6H2310655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x788d35c7ebe9ea32f4800896a24f60710a5dd3a320ae7a113f32fc8fb733b892. Chain 2 (Bitcoin): anchored in block 958722 (2026-07-19T11:03:50Z), 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/QZK6H2310659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11d97fdccd036327951716b3ab60931d0e1b6e39b40a68708e0bd62b31776100. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZK6H2310663.
Harmonic Horizons of Endless Possibilities
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05b3017f27c8ead32dbd21960dba74bcafe28ae5b4570e18877b96398ecede61. 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/QZK6H2310664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9e80dde11e5c9598fa7fbf40cddb8149459ac12daf4b99183a15e039850f27f. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T12:56:33Z), 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/QZTAX2315614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e4c45bdc1c1016d4f9bed727a07588c24db0cd4ded2aada99541d4bc8d2143a. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QZTAX2315616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a32b4f765fe57efb1cf8295960aa902d2b8b0d5726a64ac856343ba12975abd. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/QZTAX2315617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03fd5ec9e1730f93c3b1b0da6cc36e56b458059b6446c44298ff3a24247e4a37. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/QZTAX2315618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2bb5bece6884664e19d2a7f26e3d4661323c6056dff62b71b754155ff9dcce9. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZTAX2315620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6f924ecd4505070cb758b85c210f8be494e86784ee6954f12fd080808a97e40. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZTAX2315626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc45ab327f43b20df2fd13a8cce2b4d173d7036c1cecbff917aa5a6a2b0b3450a. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZTAX2315627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b71d66b11337cf4795ddf471949c67859bbd47bf00388dc4b538fbabdc6ad2c. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T13:00:56Z), 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/QZWFL2496837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba00f5e70ec4f6d0dbe37f99027976a85f82ecf6c678d9bfb26d436e5117773c. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QZDA52593059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x533da74b4b0b3e173ef7ce7c3e2ca4aee347056af5aef695e8f4dc7297ef7935. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T07:02:01Z), 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/QZK6L2530322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6934d993f78ca57f511d64b5539edd35ea575578a4410fe04054b3589fee7db4. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/QZK6L2530325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x927d2e3c3fc28f6ab2d4aad801c0a41525e6fbcffb52547f4ba318ac878ac49b. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-22T02:31:03Z), 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/QZK6L2530328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x150e2c926784d8f8cce42d95f4d55a536016bd6b67c77fd62b09ccd363a02643. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T05:41:40Z), 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/QZK6L2530329.