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 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 0x1b47055affff1c81e101c641394426069b4b54f2d0765a225dd079e0843a2344. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d530f3cd-7e56-4046-95da-c48813da6d2f.json and https://artists.proofprofile.net/proofs/artist/d530f3cd-7e56-4046-95da-c48813da6d2f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ultra-Lounge / Bachelor Pad Royale Volume Four
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 0xb80a6c1f071b971a9e1d7256801654ec3722280a937532da7ead4c38c772383e. 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/USCA29501197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa71371e267dd714cc00050c06b73f49ecb4f5e0e23332f018700f14cbec6a813. 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/USEM39500233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7a219ae8eae026c4eb1c18b8369288e4ed04e1771b3747f31742fdd1ea1c9b2. 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/USCA29602040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x268ac8b78b9ac153718e2a4e036b07b9a9c826ebde11edfa8b28c38009950214. 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/USCA29501198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5069df2f06062329d514cfa284d60836caf418ad184716343d6bd9b8d6e98956. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USCA29501199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bad8c32b12793a209a0dfae42659f712bd46b65b1eaa0842c81a3283d181eaf. 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/USCA29501201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe799ff1eec402931d1892fa822246373211116836ed0fd2b81a825b91cc7bb8b. 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/USCA29501202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc8cdb0941001e59dc98cca2ad8b0db58cb1a3bd32eb0e74589d6362782d53f9. 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/USCA29501204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab0fb9ac056de36a11f3e091d95b78512d93df59f96533ec0d36d55298a82302. 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/USEM39500235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ca2f6d791560501cccd0a22d9ddd59c57910077689025996f66509c177b7fba. 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/USCA29501207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a77f1faf884bf0601c1bc0aace4c50c236b00fb10391c457ba9184970d13558. 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/USCA29501208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec44970376cfb2a0a9f72d41875e39db231e48193857d2676928f681a84fdaee. 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/USEM39500239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf49c918482e521855dbe9d617d7161bddf221b4cfcef73a7856152be0434f2b4. 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/USCA29501209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa38f14d6a01dddfe052f70c305e52b6975df125897a04767426c50fffc11ca86. 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/USCA29501210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3cccd477991e8ff8c530c4942eed4511b7510879da07cd9c322704a40287bea. 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/USCA29501212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc359f693d297418d735a0e854f68fed62e2bc1da92cb3e13ba50aa96576df55. 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/USEM39500240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b9d37fad5eb95fa20eb80e9ddefbc5fadd54e0889ab02d10b0e97520e18e80a. 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/USEM39600227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83300cff0fd2462e3aaf14775c6b09230da550ad17af7c51f13f7a1ec2259cf2. 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/USCA29501213.