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 0x7bf6437f662ca7b2f9cbc0118c44b1c8ec68decde992a3316bc220cb6990d1cb. Chain 2 (Bitcoin): anchored in block 953699 (2026-06-14T22:00:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/619b16f4-1db6-4541-9190-3fc6067d083c.json and https://artists.proofprofile.net/proofs/artist/619b16f4-1db6-4541-9190-3fc6067d083c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
It Might Be a Relief the Weather is Not Good
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 0xacff4c7c5946c56aae3e92e68a5bb2893b6be6f3f4fd8b7622f5f83555587546. 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/KRMIM2182384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcba163114c60e511a06b893098bc16bf3454f30741cdfc67622c7d4e23bc9cff. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/KRMIM2182388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a36997726e5791aa3ace3cd5c61d8e94d57f15712608903a3302ed64352a76e. 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/KRMIM2182390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x618cacd494fdbdd0caf2c4cc8fa5c3404fcedd0f6b0c2bfa36a1583c9d8071a5. 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/KRMIM2182381.
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 0x81a604d18de4ba4c13023ab8d4bd031297d8128ddf96eff0b59c62936500e30b. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/KRMIM2182382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc726d1fd60639eb87cd83cb42c5df9f19fafc5f073e0dad60c704ae0ee108e31. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), 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/KRMIM2182383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc25bb80ef9488ce60f3afc0e5237069f5e04a8b3ecb7ef08a8dce847f8f982e2. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/KRMIM2182385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x293c051a1a219cab51b36adcf82c6885f5b071abb6864313d60efd5fd52c2385. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/KRMIM2182386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8778d05920c7eeb660a341fbc0d780cf9e2a8a9db1d61e786c101360b0e9fba6. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/KRMIM2182387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e1d5158e951386fe8310b57249ecf45991fbd3af8e150bb33c7e57259fc23e6. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/KRMIM2182389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2483769be6c4e2be3b0c4a3a5d4526ae410afbc0f3f0e53e745f183178339add. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/KRMIM2182391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0490c8cefc0f2adcf9b73ddb42cb72e314875569ef34b8cefa90d0d1e8afe89e. 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/KRMIM2179089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07bd11241ded98e3a52810476f78068c56154ab1848cdaf61fa877c9b7f1c0e0. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/KRMIM2179090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe22183a27f9e7706f34c4d51a7894cd943e5e2b245117ee8169a8ab57505faa8. 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/KRMIM2179091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8f676b0fe4f444e06f7db93ecc14e752016d595e279989ae09739cd9be1a93d. 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/KRMIM2179093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x912fa53fd22d9ed58da457fb136010c88d40d70519faaf215e7348bc904110f9. 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/KRMIM2179095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19b6e87f479c37107f1b3f13a1612dc6f57514f84e4d6bae4f6d7d29c12c7924. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/KRMIM2179096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6643a28b99c0de2d0ef1d012d7db50cd720333df363eda8fd29fc032e8181597. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T20:36:23Z), 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/KRMIM2179094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e1f6b7139052b66ce2c87436806573d1cd2832dfa5e27976fa7a1a1f75e49de. 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/KRMIM2179092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeb26fb1135cc0c55a37551623bed14aa0d89b31c9a24e43c7d68ea5a5738561. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/KRMIM2179097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a1bff588d0dbda05be89a36e4ef72de82882addc903031784b4ef6fc05e27bd. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/KRMIM2179098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x847d501cb088b572cb3518234bbc7d19b8c214feeba95186a1a96821d56158d9. 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/KRMIM2179099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62c6c82f8ff3110887a91904c6cc0a997fabbac7b160aceea292f716e46690d9. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/KRMIM2178039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd58fb82b488f96dde9de0a68ae1a551f250f0d6f6ec92c2e050791f844db2baf. 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/KRMIM2178040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbea09d39e59ff095411b6d3226342556b20c2059b1a4e1f4361c7a9a6defb971. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/KRMIM2178044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb32f392af55bb8a6e428105d687e8fe352271275c862d3f1f1717d54bd84ce60. 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/KRMIM2178045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec8a7a9171df54f6b8e371ab58a5b615f3ffd0eda7832c5a5cc3ae65d01d5271. 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/KRMIM2178046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1aa777133becac163503f6b31a271f59391195b18b3fa3fc3e9d2f02b3949196. 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/KRMIM2178048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80212a11c3e65510eaf46272d55a0610c2bb44fb6231e67fe326ff8fbf57776b. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/KRMIM2178038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ce94bdecfa6a53fee2173d6a5002b619652a24949390a4c991924c959b5ca74. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/KRMIM2178041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9cc1fc4390b4759a37f3807163a80bd06c4eebdb26f62a75638954bf696c21c. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/KRMIM2178042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f0d8e56b9a99dd74f74e1c7aa3693bfeafb041db2334a0e370b4c6e443f2b48. 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/KRMIM2178043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc357296063331a90790f1e667de5d0093e42da7b7c8f6057bb1de7293250c54. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/KRMIM2178047.