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 0x0add54e1046324dd2cd7caa212b0b11c1992afa163fe5b21d3367290e8986d6a. 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/793eb2e6-9421-4d67-829b-77f0a8ab4748.json and https://artists.proofprofile.net/proofs/artist/793eb2e6-9421-4d67-829b-77f0a8ab4748.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 0x1859f9939d260d22666f7e5b5c1eed673d3509ba134eb066f2d952ca769c34a1. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/FRX282360686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9248e9494170cac15f2d2a24a1ef09fc905795faa8fd090eb39c7652d020c963. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-19T22:59:45Z), 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/FRX282360687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf70d60051edb5d5ab9ddb0c93d4d3b29bf3a5c06e1e5fa500d734de9e87917e6. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/FR2X42347552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa44e3dd35e1845fe9272bdcac31f9ed9304ed2d96c0e92761ec4eb206d85475a. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/FRX282360692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43c700b261f75eee6651c02355edc04efc866d715cfbaa8c51ea7523485674e2. 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/TCAIC2473459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x192dbb0f1a74865c243ea8cf7de5f7ef368dd853decaed9b717979de38fdf317. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-21T08:58:18Z), 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/TCAIF2400755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b09c7052ca13919f667e48bea36825ec08de127c0e0f176bf792ac5b1840460. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T10:09:02Z), 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/RUAGW2401319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbb3305f63e55215ac128bef15c2c9e607a955601366f4b5e3bd5ba588b23586. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T09:04:56Z), 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/RUAGW2401385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08358b58b8eff05a3a0aa40b59b9b1bef5e57d41870e74a9bca8f4f014f35efa. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T01:43:57Z), 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/RUAGW2401438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d9f9a9b3bbe3692386e2243566715ae5ac538c913640f74ae4aeb40bd67b001. 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/RUAGW2401439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d944a3ff63d814819be77edd058e1cbc5f5bd30aead2cb75c84ee6d2df8505a. 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/RUAGW2401440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f5dd992fdf1ca86d2841c1daa567ed74c862e5019eff88b4a32c3541093b552. 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/RUAGW2401446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa805ff0d2d627cd0e3dcebe8d8032cc8fdcca3d55924c8ceeb2c2be78d557a31. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/RUAGW2401452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f6406d8ca4c7d84fd0b872fe1223361cd9fe49caccd408d32dbb1482181b350. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/RUAGW2506033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5490d8fd868e0476f4a57eca3413573bfab7f8d9c0ec7243858809ab41fa6296. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/RUAGW2501465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2e656a3a1b0a900cb23ffb415e4581e422d5a22d3a4ebb23c93eeb76d7da68b. 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/TCAJB2405824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3fe9ee1182b4931de0a5205ca644c0f672b083038bfc35addbca11abaed770b. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/RUAGW2506834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x192dbb0f1a74865c243ea8cf7de5f7ef368dd853decaed9b717979de38fdf317. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/TCAIF2400755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5688015d81ce9f4dd2ed6bd750cbd843289d0bba82823e7845c057332166af8a. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T09:56:57Z), 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/RUAGW2506835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c23fc58ba819b43e3f6d6ad91741590d076444bc3009b3af9e7935a88458f8b. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/RUAGW2504861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5df805f268bb1f1057fc2df24e7a712c2748826d379ad99ae2a5dd180b690a1b. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/RUAGW2506836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46dbb84f6013adfc3ed474121c0910f39e579e525b3da1d99a670b80e4f3efe0. 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/RUAGW2506837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb42ad7e1221dd6ae0e4efe512d8f4c66541e8ce8c7622a466102f1be3d6eea0. Chain 2 (Bitcoin): anchored in block 957780 (2026-07-13T00:36:44Z), 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/RUAGW2506838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53cadb34c93fa6ba8b1c7fa34934a022de1aff3334915dbdd94c5ebe27e0aaf1. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/RUAGW2506839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x875c7d00d64f76a4cc7f40a1c1e99dbc2901413f4188369dc7efe8e986cc201c. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:50:05Z), 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/RUAGW2506840.