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 0x2c0127755ed8af43b291b215abf5857b1f33fbc675e77103b3ecfcb6a9d982ab. 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/aee62b11-4712-4157-8e3c-e87941671672.json and https://artists.proofprofile.net/proofs/artist/aee62b11-4712-4157-8e3c-e87941671672.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 0x9fc5a88976baf7eeba2be0c0bb45fb4cf555216357d2729382eec6e4169acbea. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/JPB602203165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c2880f7a211ba1d8669049a2f5659df5417c727e1f0b943cf30ff05a92c0b12. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/JPB602203631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dacef958c7fdacac6d8dc4681e5229cfbbbfe0faae3449dc0880e4f82a8c5b3. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T11:05:27Z), 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/JPB602203775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0364e5a639e688732562b0a816f39893dbd70bc5dca5f99c3107f131a30fb254. 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/JPB602204245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc331714d3e404088b59234abf5946f4dc2f919e6cc8b9ea1ccaeb0dc2f9ffa47. 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/JPB602204319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cfadaa21853fc8d79c58e762fd29d7f159e17f1b39da4a065cc5fecd377bc18. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/JPB602204870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb9f71bb6669e6a8a70f20390b4429af85b6dd8dd0e7271ed278641eb9ae4a32. 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/JPB602301249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79b43e2657a78d5c9ee504581007a5df27bc22a5abc9888a72f91c6184fd1886. 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/JPB602301386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0ba54a7d28a41fb58fa2c95cc395d63d8ecca9b7718d04ed051a8d1113168c5. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:11:23Z), 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/JPB602302774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f55d61d9dfacfa7ce9dd1400a878486cc56f2101b4733a6f35fb8e03342136d. Chain 2 (Bitcoin): anchored in block 958827 (2026-07-20T07:47:15Z), 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/JPB602303683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e6d40a484a5b01ea93fc2f653db119c21825281611042a135cb4476ec159962. 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/JPB602303679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb89d3b8ac2f1bf6ac9e5e46442bddb6205d1d7c90ecf52eb814fa53cb31c43a. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/JPB602400014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea5baff2aa97b2f36a7a836f67526ef050b1373da8ff4b46a2f083ac3fe46017. 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/JPB602400015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7cba6b20d750536b42d397202d3eed522393b3ec98486c9ac562517f4f4020c. 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/JPB602400017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x163503b715edb04892abf0084c1f2c89922aee074e44a6f16d9752f5618fd53d. 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/JPB602400019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1247d1005e0360ed098aaa0d9be25a5b875777ec679b85642a4cd5975f79ab8. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/JPB602301248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e27668909f39c6905816c0fbdcc47f473ae4fd66b099a3928829849bc73fc01. 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/JPB602400023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79b43e2657a78d5c9ee504581007a5df27bc22a5abc9888a72f91c6184fd1886. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T18:55:47Z), 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/JPB602301386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x768acdab51f6d76a1f48c5a528331817abc9b37d4a5a2c1bb68a6d62bee03297. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T10:10:04Z), 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/JPB602402800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa302791bc1d5f2fdc92407763f2def3f598890fb407a41e330d3b58916f620a4. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/JPB602403109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac86b14aec57845418ef84e2d4334234828ce82d798a9bb4f3836f6788a779d0. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/JPB602403429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66259608189650777d4c64920d8358857f0880765326a56d62c4c909d9309e80. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/JPB602403768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac86b14aec57845418ef84e2d4334234828ce82d798a9bb4f3836f6788a779d0. Chain 2 (Bitcoin): anchored in block 957766 (2026-07-12T22:25:04Z), 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/JPB602403429.