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 0xd32511484d97fd4e0abd8b04ce5c8cd6815af4b5b8b714c2db75af58b23b81c3. 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/df4e1540-6b03-4e81-a7d7-6ba120cd085f.json and https://artists.proofprofile.net/proofs/artist/df4e1540-6b03-4e81-a7d7-6ba120cd085f.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 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 0x32d940f60b30cbe79da51ecc443f6f0ea9cb3b5982b97711c779427205fb578a. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/SE5Q51903396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7012bb100be395cb852e97a6f007b63804379773f6f92105355dbd1cc563f84. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/SE5Q51903750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d210196d04907128754c819bfea145a8bc95dd41801734c1cd32b4e06e0751b. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/SE5Q52002860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc25dc494b03c34c187cf741c57efa967ea24f1287eaf4d38923939cf179683f. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/SE5Q52103923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fbf5396f0715420f7dc03b46debccb5487471b8a957f7ee9cee524b3846aad3. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/SE5Q52202094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76e8c35743bd182d16c8a2880c421716fc5c187f375045ffb8db4450a9cde7cb. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/SE5Q52200342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b90004f53ed18d5babba407496412d7ef9a7d7424546fd7c7bbc1d918a7ae59. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/SE5Q52203516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4113917e828ecab98b38705c08975a2844670157529462a2178837032060e83e. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/SE5Q52203600.
Yeah You (Thinkin Bout You) (baegel Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1915017c4be74dfb0d7caf64f893e158dbc981c9bf5fd5cb6ea00d0e0e89a0ce. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/SE5Q52300858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87809fe4407381b5f088eda20d96dfdbe7ef50e5ecb7761ca1cc370536178967. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/SE5Q52300760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbc47f1e53373dd9e20dad61200ab99b546ad7fbb332017c42117d2ae6723d11. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/SE5Q52204108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d40d8a9bb137af039e635ef1ad14067e815cacaf28527fb056d4d1cadbadc3a. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/SE5Q52201663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1bfeb08b6ef6f006d955a3afbac986dcc16bc464597d494ef14d06c6faf2860. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/SE5Q52203086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82e62c1048429416ff04671b7f9c6e66294a6efccf3309923fe1ff8115cdc555. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/SE5Q52203617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c8156549baadffc147b7a78bccee07f9d9ddeff6c8fd384bc915b1232cc5b76. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/SE5Q52300432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f26052b66d7b283d5b4a9ffb0b2c33628ab5290feb785678a105823982ae31b. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T07:48:27Z), 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/SE5Q52301740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x186aa48d77168579f39397df2fa745b8ef3aeda7941afb6dad2db2a33548736e. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/SE5Q52302004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda72b28b8a1d13439902a58363b385cdd25c0ae7bbde6c3a337a9ca02f88a670. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/SE5Q52302217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fd70551f493618322c0248742573fecc7f87ae581b4512a33e784cd91fbc1f0. Chain 2 (Bitcoin): anchored in block 958573 (2026-07-18T15:49:54Z), 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/SE5Q52302334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d2df3861aacab0bc98a095d338967824f0c21a0f611313ffb70a2617ed13677. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/SE5Q52304599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdbab138abdf6f739a1c7cd61e83368ab59a9419f05fe3a26df25aaa0ac9ffbb. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T08:14:15Z), 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/SE5Q52003025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7012bb100be395cb852e97a6f007b63804379773f6f92105355dbd1cc563f84. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/SE5Q51903750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3df1996c834079362c9149a67b4fce3d0fbf5759076eda6a6664569bfaaa0e99. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/SE5Q52004068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d0e61ee242900d108910323b4989442b5eb28f2b67353ceec56b2f915ea962f. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/SE5Q52004077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa5d5641401961d703b8073c22307c6035edb90b59b23c4009eddab43ebed060. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T10:09:30Z), 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/SE5Q52401196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x744c599650e54a4731bfb77ec8dcf972da3cfc81fd44688ef75cd59f8298ef68. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/SE5Q52401194.
Done For Me (Sarah, the Illstrumentalist Club Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54b5f12e3071843aea620feb7563192d1a12cb57282a542e542128839416dd7b. 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/SE5Q52401149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecc025fe0bc4b9bc95205fc1fb87ee28c1b289d2f6d7c502eab3956921d6b5c0. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/SE5Q52400604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a8d412c4cef26647c6e0b86c28fccabc210a083f4bb00c31a37ff14cc70c0e6. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/SE5Q52300571.
Big Moody (Smai Tawi) (Sped Up Version) - Instrumental Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefcb8219d43fac2d1597174dac7084acc573b1af52c0d2f673c66172f896e9b7. 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/SE5Q52300572.
Epidemic Presents: Crates (Gouken Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf947db37d36f8b53a1db4d08daf5579e9604e7cda23f42df0cdeeb95367540d1. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/SE5Q52000107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb58f51be5cf366d2573d547f60470436403a96fe4c3690a4a77cb26943e54b59. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/SE5Q52000127.
Is It You (feat. Ivory Scott, Cristina Mackey & King Sis)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1639533b7e2f5581eb8d702bf571462c72c0bda54a396c9f8caf96a40228e9a2. 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/USUYG1501540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1639533b7e2f5581eb8d702bf571462c72c0bda54a396c9f8caf96a40228e9a2. 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/USUYG1501540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77b59caa88677b6edb81aaabb9e30589148bc73dfa2e9388e90449c49f27123c. 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/SE5Q52200597.