1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xe1b551b6e34c246878c25630a79b74b3c79ce763f77fa8c17f47d472aae29d07. 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/6996f5fa-4d48-4039-b34f-09c116323660.json and https://artists.proofprofile.net/proofs/artist/6996f5fa-4d48-4039-b34f-09c116323660.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 → block OTSBitcoinBlock must exist at that height 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 0x3c7a7aa34785283e8782bb93d3a18ab2ea62a6e013152b22001bde1f4241913f. 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/INN992200829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbac8df72833b07a7b4d318ece0ba252e67cc1f4f02a404b9f0c9d4f4e805f79. 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/INF232402272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd125968ccaed83d6620743663c514768f63211a00ae90890acc640760af87178. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/IND832403353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e0ab187434448ba01232e1dd910dea238df8be50c8d8f5e3a272d34f91557c7. 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/IND832404350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36600ef63ebcbd0d1c1694f4197f4b389be9c7ea028d73d9ae16c537295b1e1f. 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/INF232402476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93275b11069ceb733ad7a5c51c8e685ca6caf33458210a2a7fed71dbe3c75635. 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/INT982461326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37cfa1248c1b963ac6a7ec080e3a0d21a1758ce7dfe6edfc0487a92be3eb2db5. 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/IND832500011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ead80c3b4266b36b0a8f59d049d3e0e0a8aeed7868ef94dce2b921404cdb1a6. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:20:11Z), 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/IND832500112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a376e6a3d089c2408a71ed2edd71fe93f1eb66fdce67b2dd60d7b4087948945. 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/INA2W2500294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15b24bbdc575e9f165ab8ddc8c4cb79889a2ff05533e3e94559483f12b485ef2. Chain 2 (Bitcoin): anchored in block 958143 (2026-07-15T10:15:04Z), 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/INT962201129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fa6adb4d4d51f5eb3365b22e843ed8187844e8eb8138fd2b92b42f53107d2fc. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/IND832500852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cc8f15e0035eb3616fad80f23fff7595c78cb7d30ecd10fd2bde6898e70de38. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/IND832500940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x061249bfd96e11c784301ef5666de254c3fb521c7db56b4de3954cac9285494b. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/INSB92500229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9a0ad2ec340f28503b497bfb49d8854e73c0f7d9f4c7bc71682ac4e4860cc40. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/INN632500090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2b56ff32ab2ea31716ada57e6931682253aada3548f625e4d6293150188f339. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/IND832501175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba908d095bfae01028330f84a65f759167c17ec5994eb2284b3ac709cd58546a. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/INSB92500315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeea79b72c70d431b8fd51a41a18a29ea0d28fc3a3ca3feaa597b53d6bfb62508. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/IND832501731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54b68cdf26b7fc5448da7b32b21a1021cb3210b50781243f196cc2d9dacc7f96. 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/QZNJW2599875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x968e5799d6ca51ee391192ea1519a308973b6ea64849c8c131b7e4c15ffd4f88. 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/INSB92500461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1912694a781e4310301e3486298addf1b7548c337a5f7f5fa567eb2a5d73ace1. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/INN632500170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bd365dd26f4416e9343a22de098c89d8e5daa83e01394db9a274a6583e2516f. 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/INN632500183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ca0650e07ad73478771a3370fb3d8179b9932a5cd2d4237eb2d2aa14e7797d6. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/INSB92500549.