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 0x87be1a64e781160dec2b0b72c34494647059b578ea3db516d58e17f1dd1f0d23. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9abd0ece-bdb3-4259-9da2-f9627aec0676.json and https://artists.proofprofile.net/proofs/artist/9abd0ece-bdb3-4259-9da2-f9627aec0676.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Sanāciet, sadziediet...Dziesmas ar Jāņa Petera dzeju.
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 0x2f65cde47a43558ff94fd4eb058c2c5d5e39b2e4ecfc21ce9889540ee141c44a. 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/QMFME1470991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3bf52ab7900311c1642f8a6e8b8c6f57654b184c08f0fa6c7e631155bc2a19a. 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/QMFME1470992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x713e53dff3b0009cce8837b560dbf97d13497c0de3566f3e06c0fe286d9dd848. 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/QMFME1470994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ef08859f93cf9518e29a6086b96d789574e83b1094cd90fba2583ebb0416078. 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/QMFME1470997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fbfd529fa0fd2e5657f74a2adafb7603bd3b89bb6d05357a6bc382298157fee. 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/QMFME1470999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6869ef221452ca6a7f8bee48cfaa48d8f64a7789bff2946a5403aa509080a0d0. 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/QMFME1471000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ac7b29818cbbacbbf7c2f29c5b392136d8178230335a17834efe7fbb027511e. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QMFME1471001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63161d5d146be3b3a31a990132f97b2c39f38e8552dba41ac1eaddd93032300c. 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/QMFME1471006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67892ba924400057b989fd60b30da7207b1e35532322b432abc80047fb1347fe. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QMFME1471007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00ebc7a584a2e660ad1cfeb5c4b223d96c203ee9e4d4b5254319a5cf8f773e23. 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/QMFME1471010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf942af1127cbe64de65f5526e039b300c03d89119625cb9a14d242fdb6c6a697. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QMFME1471011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6825e9e8073804a6c568615afae731ec9a199300a031b3d69fbe1ebf4c6a2e6e. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T17:04:45Z), 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/QMFME1470998.
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 0x804cea1f5e53e0d0d688b4d4bd2cb98c90718305d5123c09adc6d96e1ffc935a. Chain 2 (Bitcoin): anchored in block 960241 (2026-07-30T09:58:01Z), 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/QMFME1470990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22a2abf2c9d3df2fa150f081c076745b4440eb8e394c782c739e1b9b4a72e72f. 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/QMFME1470993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c0ea7b975895ee4bd30dc12713ab30854d1f4e17d74510e1ba4557f4f3fd9be. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/QMFME1470995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3d96b4cacf4ce7168308dd0ee5dd995aaa2732aad290b8db1b793aabb30c8b2. Chain 2 (Bitcoin): anchored in block 960404 (2026-07-31T13:06:57Z), 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/QMFME1470996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf3f702e4b91c3584567676f348cf132fbcbccda496af8c2faa5c13a0b40edc6. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/QMFME1471002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36ac3a013a44ea421e06f36e46fcd0ba1e5a0544bc61eb752f4305b679b9da18. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/QMFME1471004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2865fab330393d310a02bd8a4ae4d7d8e0f144c30a080f8f520d368d28cc06a. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), 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/QMFME1471005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0abf8952115bed36fe30a7d4c65d777d18ddf8fa9afbfdf46dd3da6ef29cbf2. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/QMFME1471008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c9d2303acc83c7bf9a8ae4f1cc900d98dd5660741758d1712997a2ccffbb86f. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/QMFME1471009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48cf30b4738f43d8c44d0b112a78019e007e7a7577bf3009f40f5e11ca1ad548. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/QMFME1471012.