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 0x78d2b17bfc4520914263ee38512633eeb1f8e7d9e0e340065467a8c47b7d0f9d. Chain 2 (Bitcoin): anchored in block 954549 (2026-06-20T10:56:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a9b4d51f-8c3e-4508-a6b6-a7c68f68c50e.json and https://artists.proofprofile.net/proofs/artist/a9b4d51f-8c3e-4508-a6b6-a7c68f68c50e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Creationz, Vol. III (Selected by SwiTcHcaChe)
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 0xa9f6b74c981d282e387d1134b6e4d73694b1e39901eaad3bdd6e85843c714335. 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/UKR6V2178789.
Creationz, Vol. 5 (Selected by Switchcache)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a2a1e628645c3bf14071c116a1a15a11b07b68843b604216be7a54ce95b8d85. 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/UKR6V2282490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa477593a3737d5c667af9111aba2d056fc00ad42a12bace9dc1aa999727bdda8. 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/UKR6V2282491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17cb7ce51511f0090637de9e2a4c262a4a74ff675dff66c95f6fa1c6c9faefaf. 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/GXBNP2402494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43818aea0253a36b99630b7312b057952081b8b17947c7bfe5a84dad7cf5c288. 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/GXBNP2402495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeef3e4dff63fc5ce11ca9dc0ff7fd764c66a03d367f6848118778c5d612c2bb6. 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/GXBNP2402498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c4d357e08506fd6ca09b9acab9df7b5c90a9af95043daa652ef490713438a3b. 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/GXBNP2402501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4521717ee0096d5541412b2da8b09cb572a0afee1cfdaa12c27339204716956c. Chain 2 (Bitcoin): anchored in block 957025 (2026-07-21T17:35:52Z), 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/GXBNP2402507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6bd6cfcba57be3ea14c87618d9e6c74ecbbc02603be7e46c11c841e8487935f. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/GXBNP2402500.
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 0x6a4177af7550aecafd5dfdeba0e4602759085493e1cfebb01ecf4f6d2b8b24f7. 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/UKR6V2410215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c265224a63a5121b715919bfba02f5c8d46d67747ec12a700c80ac99556fa9c. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/UKR6V2410216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30ff08a6b6433844824242fe7199130d734ca076333fefbbdf42262e367350b5. 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/UKU932145649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaa1332caa664b0ddee1bd5e87dcf3dcf219060b45a89942f74c3b0450d32704. 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/UKACT1948442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdba8afd55a6e3fb51d33c34e35bc8980afe0156ba5decb2649e1c244c928cd9. 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/UKACT1948449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6d40676f05aa431c4a27beaba93c890ed741a03b5a7c7c8d01aaad0424db86b. 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/UKACT1948453.
Unknown Multiverse, Vol. 1 (Compiled by Axell Astrid)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9f3feaa3def405c6a141aacd40616e4e1dfc018704a1ae327d7dadfc0e1d8f0. 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/GBWUL2060004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbe723496b57282f13f06f8a72e933c181cdead45a87a4d6fdcbee89b9b6aa39. 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/GBWUL2060630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5db2cafa371dedfe79d508591b58ca3b4ccaa7026babbfc50afe5828c5a2144. 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/GBWUL2062644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e4bd8389819c186e2efe683d2f677b08ef815a55de50a659138bfc3eee0c2c7. 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/GBWUL2060726.
Creationz Vol II (Selected by Switchcache & Space Byrd)