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 0x9b4391c243940e36ea2e2c3048f58dc3acdc6826f438c15f46d02aac425099ee. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9229dd68-6881-429f-a096-5e8f94beda81.json and https://artists.proofprofile.net/proofs/artist/9229dd68-6881-429f-a096-5e8f94beda81.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Alice in Wonderland (Sam Silver Extended Remix)
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 0x1eb14a31ed9ddb4c285d4ab3d7bfdc62a5f7080cefa8e6d0e82cd8b5747a4994. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:34:08Z), 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/QM6N22085022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d3bc8b2b9286e19ee5cb31f6269ac4539edaf7cbde45a1ac9f7e72ecd1a43db. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:35:58Z), 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/QZ5FN2222944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc7e53e7bbbc979da7b0bda00394339203565160d4eaea45c57dc04c11e4bff7. 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/QZ5FN2285530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16ffb1a49938b96fec7136511c1b2a206b407f9f20b1d95c15f3df4cceba7311. 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/TLREW2221098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ab45c8c25d35f2f3012e474333a0c709b6780db753436e22aba2ffd6e39f079. 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/TLREW2227877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ff44953b2dbc4d1ebed226e2881b4fac758f95d394cad13f52887ae6c738a16. Chain 2 (Bitcoin): anchored in block 956404 (2026-07-02T22:12:38Z), 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/QZVEM2313092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x007ddc096f25b3424f03676d9211ae1bda3ec67dcc4d1a230bc365068f077cb0. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZVEM2313094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ff44953b2dbc4d1ebed226e2881b4fac758f95d394cad13f52887ae6c738a16. 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/QZVEM2313092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fe3a220a1d50d3f1c1259aeeafc0a7cd4562072b4264302aeb47cd0c0860e1e. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/QZVEM2313093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x007ddc096f25b3424f03676d9211ae1bda3ec67dcc4d1a230bc365068f077cb0. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/QZVEM2313094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce59138412f6c665c615b3ff9991eaceec0e2cba74eca69284bd954fc47520d2. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/QZVEM2313095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dcef18368a7db50d5998963ba095057d1a28ac19093c8ef6f9d5cfdcc460348. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZVEM2313096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaddd5cd0e7626eb74504d335eac3c4d5eddab393afad716849468ac33effa5f2. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/QZVEM2313417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x275ef717f76b30b745294c349c5e46f5505bc2ee31a099e39197164b9e9e6744. 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/QZVEM2324857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a80dfc7a2a7ec8b2d8191cb756b5f3a62370895ec10c91da9c75770d8987677. Chain 2 (Bitcoin): anchored in block 957642 (2026-07-12T02:46:48Z), 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/NLRD52350386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40e1ce28f117fbf255244dc5c90cd1d5875b03bb67c8fbc6cd89f5f378187dba. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/NLRD52350434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b7bd165ccea4d66c22e6ae7bb039d6550245a9c00d9f9d37da7bd37e2837e0d. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/NLRD52350466.