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 0x6d5b5140cde5a04adf54ad4c00f43a730a9343c0f158bb6594f4ea615cdf90f3. 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/f37dde8e-fbee-40c1-89f5-c72c7c3d2507.json and https://artists.proofprofile.net/proofs/artist/f37dde8e-fbee-40c1-89f5-c72c7c3d2507.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 0x06d23f866687278cccc1953fcea4c556dff4f231b669dcf0573747c7b38948a4. 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/QZK6F2067266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36e3be8928c4a3106464486b2b0a0a888fcd5c3afd58756c0880a41529a6d738. 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/QZK6F2067267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefba6700d8700f33d9fcaa51850beccb3f77a3fd7f8b0ed92434e7755e95cad7. Chain 2 (Bitcoin): anchored in block 959145 (2026-07-22T17:34:29Z), 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/QZK6F2067268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x164b3d786708820bde0d923f1ed1d95f3d6252982572a3a8e2954494fdb08459. 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/QZK6F2067269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf56f9cbef935cb4946e3fb539a5b384d4214a148c49504d36fab984c7c1040c7. 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/QZK6F2067270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28034531bad000c0b5bc63e35a40ed3015db8d58ec105850288abb764c08ad03. 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/QZK6F2067271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4236aed5173ec54f73e03065126cf8a93ad7e5e5bba36cc9508df1a29087c99. 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/QZK6F2067272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa864b94139a97b8a067fd28417bb6aa21d5909b1e32d870532dd05d467168bc6. Chain 2 (Bitcoin): anchored in block 956859 (2026-07-06T01:42:12Z), 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/QZK6F2067273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86e2aa929bff76f4b0d12f529d5cbf5a95f79a6e24e59d6e9e66895a091a98e2. 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/QZK6F2067274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a82db095deb661b756e4cdfcf48cad92bb09337d7a1ff87f60d53138fe4bb81. 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/QZK6F2067275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8abdf7ef7a2540ad919cecec4ab828e40102dfd3fa1830374db39dbe9b3a47a4. 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/QZK6F2067276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a643c802a32e1ab2b35e09a53d8a41b7e164c39ccc1e9414d6af2969efafcd5. 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/QZK6F2067277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x199832fd2e64325df2aa1a09ce8653c2e1cf2d57d426fcd2a3c7f5b7638040ab. 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/QZK6F2067279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d0360ee3957a957129f8bc22b732db72e59705da578dfd14396e7de1b0d1595. Chain 2 (Bitcoin): anchored in block 960145 (2026-07-29T21:13:37Z), 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/QZK6F2067278.
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 0x10ca149204468893bb1bf98ab97221f9ce4b1282bd574783abe0fd2ce3569b3e. Chain 2 (Bitcoin): anchored in block 959146 (2026-07-22T17:32:35Z), 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/QZK6P2150114.
The Boom Bap - Abstract The Origin Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43c483995794c33488c68b5d0c3e5dd146e8c8906ecdfbe85bce5418a9474e11. 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/QZK6P2150115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73f5ab25b0cf5ece485aae479051ec64ea66ab3803665755d898661677a47f16. Chain 2 (Bitcoin): anchored in block 960183 (2026-07-30T01:10:20Z), 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/QZK6P2150116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebae6adf5f93085e624561a29b638964414464bda67d95fbf26636e269ec80f3. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/QZK6P2150117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b4b5260236309067340e8f9c6b4677991937c5b82865cdbdc19c27bc5c066cf. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/QZK6P2150118.