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 0x8145eab41b5499972394e1e8a8336e2953ca635a135175b3c1e333e0c9407082. Chain 2 (Bitcoin): anchored in block 953717 (2026-06-15T01:05:33Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/875bf4d5-cd3b-4acd-b07d-b5e216799c84.json and https://artists.proofprofile.net/proofs/artist/875bf4d5-cd3b-4acd-b07d-b5e216799c84.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 0xa08c6a877a9322518db5be7480bea60243ef417256570dfc22c5690b66ded3ff. 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/QM2PV1876866.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x444553503dba5c992d488c36724fe96b6073292faf9ea71f63edf7e0d8f51bc0. 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/QM2PV1876867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2b51c2f038243aefdcc40e59a8a659530241a084742d8637d0325defb8defb2. 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/QM2PV1876868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefb8c9360835fff8c60b84dbc13ffa53fd2d595ce0d079e32a7cbda2958ca412. 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/QM2PV1876869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x009f738db65aa0b11355ff0bf3feb47ab9bf5c36f8dde3f6c478c7875ed98124. 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/QM2PV1876870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfa6e6e518a2f5c400653525b0aae78d76339d4d2f3e9bd96ec6459b1f8f8348. 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/QM2PV1876871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf25aa99b6cfd6194388d7255725f68fb3583622e129ae121a0f48de9cbfb3335. 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/QM2PV1876872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6c649bc7deedb0e016e58ab9e672b87c03dd0b3147a4ff3244b8a41fd067709. 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/QM2PV1876873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81dafaa4c19e2cfadf619945064b75d1d6562897fab70d14ad74fe0aedee46a1. 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/QM2PV1876874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bcdb6e12242b155c2acfec2a06aa9bd599e04c85ccca2ec1b33142b3eb6ed7e. 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/QM2PV1876875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6088167b001bd41280c27e36d9e4786e1c9aa9b7d8ca045c56e804aee3086f58. 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/QM2PV1876876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cab544db0bbe918ba571a994c30ff02ae47a2aba810b672561eb2f03c132c53. 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/QM2PV1876877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefcb0b40ae39149431bceb2d9144288969f7862136755a262eed3b313ce964c6. 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/QZTB82461298.
essensen av smärta, reflektion och återhämtning
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca38909c47a6af412b6ffa4b8388bab5fc2a8be4c3898e2f5cd42332d83f0e89. 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/QZNWZ2466056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6848e1db0388167576c8ae13927e4656a38ef82f1936df084ca55ce390d4c11b. 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/QZNWZ2466057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6edbcb76776c903b3989622b09dd4314601684f9857dda46e479a51d33189c6. 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/QZNWZ2466058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1048f18a985bd776e02e6bafbfae30b9c9f36e3c71e83d2ed60d24c63414e57e. 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/QZNWZ2466059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdf055d3e7a5d1dbd653351aadbcfa1b19d0e1453a007d06d0ab1b80ce42b42d. 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/QZTB32225390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0094d8f0be4973ac32cdba144e7ef0dcfeb641389f3f5c0fbd1495b76060afb5. 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/QZTB32225392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3ac0f12944eb88d8eceb478692bd229cdb08bbd7b73438c716bc38806515279. 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/QZTB32225393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5894d7517566fcdec54ce31b4e8921ba7cbbc3b26a311ea08869804799c71ba. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T20:53:41Z), 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/QZTB32225391.
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 0x1f4837f17f4f84f678576d368e2acbc125c661a6d133384adb77e5d1a0761741. 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/QZNWQ2086666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x606db2942efd1f07458aa8582e7cf42662d20ff7984753a5fc8a271cd8cec571. 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/QZNWQ2086668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79a07735821fee4112026fd173594a0523e78fea9138ba0a58b0fb0001cbbdbe. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/QZNWQ2086667.