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 0xb547d711b86da97afd40cca4e10715d4ad257e94675a2dd605cde8eb1171e6d3. 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/bbfea3f3-1096-46d8-a96d-099bfc3b4bb2.json and https://artists.proofprofile.net/proofs/artist/bbfea3f3-1096-46d8-a96d-099bfc3b4bb2.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 0x80c1147a29aa215e41a550925b59fd03df529e9733b6017e4478f5a9b740fb0a. 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/DKZ612000101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfb3f3f3985ba572060ce15e789ead37da37d1b43127d067f294d8929cd127d1. 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/DKZ612000104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x243a7f83fe2a1340795af1d7fa2507299031a19e0e2db7d59af66a1e5460e3dd. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/DKZ612000108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x837e6612b29a25fe6358fc3269fd4a0769c772209adf78106448e2bf747b1c70. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/DKZ612000109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf78b995e1f2f0c8b9f1d5dfa147de94308f1601c751fa6a1de6d663a38790641. Chain 2 (Bitcoin): anchored in block 957681 (2026-07-12T09:09:02Z), 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/DKZ612000110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1980f14941ea5b3c1bc00c684c59f6ad93eca2844d23a838046d45d95fc9648. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/DKZ612000111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfb3f3f3985ba572060ce15e789ead37da37d1b43127d067f294d8929cd127d1. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/DKZ612000104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4e61f00def9467ae98471a44ebcfdb668210ce27b626b18009d2e9efcf88c27. Chain 2 (Bitcoin): anchored in block 957779 (2026-07-13T00:19:08Z), 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/DKZ612000107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x243a7f83fe2a1340795af1d7fa2507299031a19e0e2db7d59af66a1e5460e3dd. 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/DKZ612000108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x837e6612b29a25fe6358fc3269fd4a0769c772209adf78106448e2bf747b1c70. 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/DKZ612000109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf78b995e1f2f0c8b9f1d5dfa147de94308f1601c751fa6a1de6d663a38790641. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/DKZ612000110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1980f14941ea5b3c1bc00c684c59f6ad93eca2844d23a838046d45d95fc9648. 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/DKZ612000111.
I østen stiger solen op (Jeg kan mærke håbet) II
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd580d0fbf19054bc3adb37b733e96cb363a96d18ba4529b997f022d10315c1e1. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/DKZ612500101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e05d2bca7e52c14fddb89e696e5be222c3298bb27d0e9d7c260919a59eff73f. 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/QMBZ92185269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d93f7dc6f221563c9381b2d37f33fb0c8103f36eb2cd992d65b36043fe630b8. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QMFME2366105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d2a714476f0303f7365df9f0b9827827790f3313ea790fedaaa42693d5f85c4. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DKA6U2100102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8185fe1f72c04f4e9b60b5bf82b35f4e5f7d662df339ae659353b5c38d00a087. 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/DKA6U2400301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc84aebba9d2ec238b213dff8424e22d209a5b025f71f9319a6939dd72ddb1034. 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/DKA6U2400201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc84aebba9d2ec238b213dff8424e22d209a5b025f71f9319a6939dd72ddb1034. 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/DKA6U2400201.