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 0xd183e1cd15703043fdb67dc0629ba6503003b35e98651787a078e9f101145d66. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/92a71ad1-3b92-4b21-81ff-9af417a69662.json and https://artists.proofprofile.net/proofs/artist/92a71ad1-3b92-4b21-81ff-9af417a69662.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Peoples Potential Unlimited Test Pressing
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 0xd560426837b276588adc0d4cc6ba217307446d154502f8c4b60f04b1eda4f0a0. 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/USJ3V1267487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0df5ea0c1418f1530dd602c0b001f2cf6c7e11d9483569cf5469d54f940ee3f. 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/USJ3V1267490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a54063d1710684b4a111e03eab0d9af3aef2a1161e40664490a7b8edc63f397. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:09:56Z), 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/QMHG41689001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71e7ee2d9cf9052b1115dddf1c846aae163f09a94ac3e519c986702e8323a8fa. 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/QMHG41689002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67395e2443bd565979a8d0804b81d95daf846595431e1582abf8ab9f76f141b5. 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/QMHG41790001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4e0441d158dbdae85c279f2ba90d9b7237d6853565eab7b4b7409d13fa496ff. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/QMHG41790003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bd442b4ebbc4a7625e3d103e6b1a5ac58bdad3742837f18eb344a3a89f33f50. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/QMHG41790005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2329e4bfb1153e09bbf565ef970c0b008d87d28b72648df92df05e683f803951. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/QMHG41790007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f3856ae2161367b63f6f26eb8267123ffde1de286c286769e28486c4e1c3ca4. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/NLD7H1800020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78ceb371f15e2e6630d42fc799cd301bfd9fd8a04dc7cacc84f94871d6780579. 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/NLD7H1800022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x372eebe501fe7e21a261a18bab08e1855f192b7a444ff8ae36518f75dd49bbe8. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:06:22Z), 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/NLD7H1800024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b0d50d3b45094b5dfc9bc4b884ac5a542419ca3bb565a57ab45cc10cd596c61. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/GBQLP2200485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98379c7e8b25ea45fc7993a2907880fec6b6b2a8ab720070c76e55586ba947f0. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/GBQLP2200648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x795a5dbc90b666f955787d967f8581e0e3a80c0e8a8379dde0cbd72b8c7f9faf. 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/GBQLP2200649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9432ce11f27f7a0f88d543183504154673a6ee6190b61b2356aa0efe51c32242. 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/GBQLP2200650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f5a4cacedce0cfa837252dd93424db753636a9e79084d45b74f52c6fd15a771. 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/US2S71801029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6e5abe61b1f9aac36dc99dc2542ff709a82367441d0b9fef6ac43d018216654. 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/QMDA61325594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb7e2bc26f1ed6885c7f6673e4254ae8a0b2cac063c983602ed751fa97df086e. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QMDA61325595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd01a82907e97022c23dbe83bca9c5ff2f89933d03d64456624b0224eff695e38. 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/QMDA61325596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24d10526ab2724f0a1c843ac806b924fa0c6767b1d95b4044ce389f7e68c3b6a. Chain 2 (Bitcoin): anchored in block 960419 (2026-07-31T15:20:33Z), 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/QMR6U1400041.
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 0x91cb6711ca8532c96a0924b0004ac93ff35ef212d5382665ba120c02dc8e5d0c. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/USANG2083018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb1c83fdca0bbddd3424f720281af6d50b4530d38389c190182a5437d7cda21d. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/QMDA61325589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9d1bc01aae7bedc8af07ce55afb84da75960368aa07f5f6b39d8cfef908cf12. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/QMDA61325590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0211cba26269f042ccefb9306b95c899f96f1d01ca19b1b3c55c083f2d0a6a3. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/QMDA61325591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x142e35d98740bcbb51a87d4ec063af309ee13968703371095fa890a1c0b652f5. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/QMDA61325592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa517efa516baf41335853a9204960143cc5287c9b9cf026d399156ccfd0c6ef. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/QMDA61325593.