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 0xc1e75647422d7d6bbac4c4e0cab85d88b342e150d429b4bc6e803e12ee608891. 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/8c61c93a-ffcd-4222-bbc2-bdcf691d8c98.json and https://artists.proofprofile.net/proofs/artist/8c61c93a-ffcd-4222-bbc2-bdcf691d8c98.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 0xae855bb93f947d36bdaf36c11c5d11ec0a1b15529b46a29e62d75d48cfd28922. 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/GBMJG1604018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d3de047bab062424d9a21545373685ab77716b5159c22ba84748a7d6542b900. 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/GBMJG1604019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1efc74146f4ca7ff51575d1863a6b00206182673d76bd34a23ff6729cfea7d5f. 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/GBMJG1604020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd82249d6d0bf9396882dedd80760505a542b7f33460a38971121c2e581966804. 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/GBMJG1604021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d828e3c6705bac5337d6a11553f05211d1477353438d127dae71107bee27f39. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBMJG1604022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e8e0c8544e73ef052e70e239c7e96554f4914a34c2e67249d7c2c65004a2d08. 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/GBMJG1604023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a428423eeb8f67bfa52fbf552b6acb775faf217abd7add72ba5e822759d6c8e. 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/GBMJG1604024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cde8db85d5c54f23595993efb725a99ac0bbea56b6821f015289271733b77af. 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/GBMJG1604025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f78a2b8d1b5d4bffcb1bc5116908528f7d5f58835a34206ed64b5c19f994924. 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/GBMJG1604026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31994cf12e1211eb2eb751f358973bf6f60447cfa9fdfce7eef2a9c8bc21b6da. 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/GBMJG1504544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x565a6264d5a6afca640d125b0f6bd35d2362d29b61fb1c8777a47f6195b84eff. 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/GBMJG1504548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91d8f237cda8199d822e8dac50d7f3cc2c08a52d7bf961b177cd418af739c9c4. 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/GBMJG1504549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00dca6a2e93740848e488c76470706a4a45a8c89593dc3c17e868ec372dd1770. 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/GBMJG1504551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c74a01807f14187e82bd53673804f7f94fc42a41f1db647882cd87f8bff4a40. 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/GBMJG1504552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe624140b1e46227775d8815129abeddc55308caf2fe091054c669bf383ebd763. Chain 2 (Bitcoin): anchored in block 958042 (2026-07-14T18:24:07Z), 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/GBMJG1504554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bef52ede7a381088093b13a1db145fb98f734cb41719a0afe7dd0506f24d80f. 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/GBMJG1504555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x635409c6c25c853e2c29193176bf2e8996f6505234ac6bb51f4b627b78874e3b. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/GBMJG1504556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6964686e4c8ae5083f0c4ba7b0b47a87bf0b30affdf9c42572f1110b8f0a9481. 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/GBMJG1504557.
Bare vip det (Når man kommer hjem fra byen)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6451656c6ee0c60abc8dab7c57863be77f1a62b15e11129018b664ffbc76bcc. 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/GBMJG1504558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6f4baaf7d04d3d6b077524a124f42957edc6e29a2542d7f4067d26768e668f6. 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/GBMJG1504563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x163b87bd978e86a44f5395bcdb954d53e7c5562da524172b404758ad03387695. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/GBMJG1504545.
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 0x4ebb4cd0f98702c958b7a97f0fef419be0aec36243dda711910cea55ee5bf4dc. 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/GBMJG1504546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x767c890a2729d477d6514eeb2eb2377b64e36e4470a943cafc0d7add2ca65e4c. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/GBMJG1504547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2123ac102b038eb9ef917ca1cfbabcab0865886e5651fa879cee6f0e2b6ecc5. Chain 2 (Bitcoin): anchored in block 960191 (2026-07-30T01:51:26Z), 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/GBMJG1504550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8099289de6ca38bdbf8d488ae19a878316e88c73d1caa106237120faa3b39bb1. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/GBMJG1504559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bcc3b0e9ba968b4ce14c374d0b940d4616083d7780bf9b2dbfbe6a6ea4e1ba9. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/GBMJG1504560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7ad74fc3d4fc7973e08f7d73c4906fa3f32f0f6cf41903e3c4a9fb5bfb13246. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/GBMJG1504561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5383e6cbf2f029851f0a009346861ceedeac5c0ecbd97af5299f64b4e07a1995. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QZAPG1710394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb303204662a6dc5418224be523fa3d97f1ca57b4d5039a05fa8036b6919ab488. 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/QZAPG1758917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x686c4ba0af837b5d1a2b78da442cd28402076909fb16bedf54ad6bc8cebbf2ff. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZAPG1758918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x183cba82d04e98dc763db5d023c206021ceab0df84c3dc79b1873d6d97187e10. 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/QZ8LD1711367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdea0951fe4914cf4882e5a6acd98b5a0b9e270accbc2f7c1fe9ea5d7a96a365d. 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/QZ9JZ1736506.