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 0x8203e8a3b4dfbe55b81d5566bc91db052bdad179a9f89395633c466497f1fc88. 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/1f111390-1f8d-406e-b876-8174c62c5214.json and https://artists.proofprofile.net/proofs/artist/1f111390-1f8d-406e-b876-8174c62c5214.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Gaston - From "Beauty and the Beast" / Soundtrack Version
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 0x1f5e072c97eff7fc15afdb8da0a0938e86be096705ed4dfabca68de77337c05a. 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/USWD10220401.
The Mob Song - From "Beauty and the Beast"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2bee2a332fa8c72ae3c3f2cb5bcdd891514ce833a5e3c7bd415e5fd8bc3869a. 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/USWD10423268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f5e072c97eff7fc15afdb8da0a0938e86be096705ed4dfabca68de77337c05a. 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/USWD10220401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc37c4e939c46a2c3a543c7a3206f928ed1523a2a07b996b2509333214cff3a1c. 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/USWD10423270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc37c4e939c46a2c3a543c7a3206f928ed1523a2a07b996b2509333214cff3a1c. 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/USWD10423270.
Phantom: The American Musical Sensation (Premiere Cast Recording)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74c8028f41b3a73297f828b7cc0094a4f81f6d442b46d5796c253932e25ca4b9. 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/USV110300045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x598223a7deff33506fe39d396cc4ccd669f639eca63081a84317df37df197a6b. Chain 2 (Bitcoin): anchored in block 957067 (2026-07-07T16:54:37Z), 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/USV110300046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71590fc4eff5b3874e900de7fefadd1b067c79caaa53fc2335b229257893db6f. 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/USV110300047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8743491bd282cdc2f587705404ceedf85ec1ac57a3d6fea1ac5a456b12fcc3d5. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/USV110300051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f5e072c97eff7fc15afdb8da0a0938e86be096705ed4dfabca68de77337c05a. 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/USWD10220401.
Disney Princess: The Ultimate Song Collection
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12885dcc72018a78a4bb395c82957ec2e6bbcfd186e8dd2c13a732e838518f75. 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/USWD10110088.
Disney Princess - The Ultimate Song Collection
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12885dcc72018a78a4bb395c82957ec2e6bbcfd186e8dd2c13a732e838518f75. 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/USWD10110088.
Services in G - chorus and organ, Op. 81 (1904): Magnificat
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63d98efb198783e001f3eb1fae892ce608191435f90999eda4fc4c33ba778283. Chain 2 (Bitcoin): anchored in block 960381 (2026-07-31T09:50:11Z), 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/GBF075641006.
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 0x633fbd5ffb78e15842332116d61422309aaff3acfc3ebbf174941b29ca6f5587. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/USV110300041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x726de85b90aa83fdd1a02068cf28a7a97f0930744ac1674eedc1da42723a3c55. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USV110300043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd85fbed94340995ab2b59dc47ea483e51f473e7c0489bf7bfa9496b8c686f97f. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/USV110300053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe950c67b3498291ba8f7b70b10552c96b2313dffb94e6ce66ffbd65b85b4319f. Chain 2 (Bitcoin): anchored in block 960193 (2026-07-30T02:05:19Z), 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/USV110300054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45d04a02200e0974c476e47ed7022162c6969e5a9c192687d17690423ad0202a. Chain 2 (Bitcoin): anchored in block 960381 (2026-07-31T09:50:11Z), 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/USWD10525849.