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 0xaf02161bf1bd6872a37447ca6125a36df027fb1310f068ece831b585d8a21593. 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/b31fb82b-73f5-4249-88d8-1fa37a604045.json and https://artists.proofprofile.net/proofs/artist/b31fb82b-73f5-4249-88d8-1fa37a604045.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0xaad532ee7aec83524684cd677bcf2f3244d684b639a408fdb896888401326c97. 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/GB6ZW1900081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc952f21569cc34a7fbe81819af78c2013a674578968e3804ad1369ec2ae3746d. 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/GB6ZW1900082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x789c226b0f5623c03bb15ffe154cc40c628db77fd47f2a19899aabf1a105d32f. 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/GB6ZW1900084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa771f606e324d3fde21aa8b31dc66da4e5f8eb944cbcf64d8ef7a66c4da23c23. 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/GB6ZW1900083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21d0c099d84edff0406f633b2c6c78bbb558c679b4c2c47436d3c474423c0612. 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/GB6ZW1900087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42e0535b0b0c2b7d927e46d241976a9327b83c02d5f05c81e32cf28c596524c4. 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/GB6ZW1900088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ab1aef466a88975981b95c2613293c4dbb1a703d362cb6b9f382dc3434daee1. 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/GB6ZW1900089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1931ad7febf70f1dd78db2e2a0302c53c612801035209c2f026f96b004eb705. 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/GB6ZW1900090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9884bdc6550010fa54b1e0c8a39da12199a86de6ce6263eacb36dd2d37ee2d96. 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/GB6ZW1900091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd732c850cd3d63d698fd1909e4536c1d09ec51756b8801de0b39e2953fb3cca0. 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/GB6ZW1900092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc681acbf4016718a57019ca36b43f5f07d758b3ed7957f7af2bfc68fb52760b2. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GB6ZW1900093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40f3fcdb4b33f4b6ffbea4dacb35f8da5d034a78bf4e9265dd9f066ca64bcad4. 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/GB6ZW1900094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78e3cb5013cbca7e740e03d5960a9aa972849aed7bcbeab104ecf10c0270aaad. 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/GB6ZW1900095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba13bbcaf43ecfaff800176ed01e41beec3effc509c4b4108adb747e030b92a9. 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/GB6ZW1900096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04cdb6e2c7dae219216c5b8d2000838a4ec9509def30148851085929bf4e3a3d. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/GB6ZW1900085.
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 0xd1fb383e05c9991d22ad8e2ea30c7d182502b96ec541096dc02cc7345e606d2f. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/GB6ZW1900086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb24884eed4de087a46fc6afbb37c76a5cf448da52cec442883656b61e6733443. 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/GB6ZW2100109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc700dcc022496c01634ec21d0bdb166e61999ca1612669b28434922870c1ff2. 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/GBVW22100036.
Roll at Dawn (feat. Jack Jetson, Bva, Smellington Piff, Oab & Leaf Dog)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x247d93c903ce17ee0bb84a51dcd7615117d0ac27ac1ed70b9a8fb93bab14cfe7. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/GBVW21600002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc10c2a2fa3a9ade46ad8e60c289ba9886ba686332c0fe2df500a00677341177. 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/FR10S2470673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79e83d7244702d381789b61cedc6ba058a6f9affc72e5abea76dfed538d401cc. 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/GBVW22100039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd294dc1e598037bc25ea2539f5e09bc1b5b1f0986f0d7bce30c94873f2da97fe. 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/FR59R1877530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbeb751537a835740bb1c1b07034c7bbdd2eecd3525af1c7c8f8c09d0ad9b1ece. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T15:02:04Z), 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/GBVW21600005.