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 0x58448f56948b2e1d6b80f781cd2b193cf4da11e5e261dba95c195d1a9da36a9d. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/90f4ec5f-f056-460a-a2ae-a615bae15aa8.json and https://artists.proofprofile.net/proofs/artist/90f4ec5f-f056-460a-a2ae-a615bae15aa8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Uncertain, Fragmented CALAMITY (Original Unofficial Game Soundtrack)
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 0xef12d31c4980335949077d11d4ae29da4837d5e8bfd2a238ba759d21916c677a. Chain 2 (Bitcoin): anchored in block 958696 (2026-07-19T07:45:31Z), 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/QZPJ32374830.
The Resurrection of a Cruel World (Calamity Original Game Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ccf2a2bb71e264424e03d75b576790bff509388fb928c846f3f67e4dc709d51. Chain 2 (Bitcoin): anchored in block 958390 (2026-07-17T09:35:49Z), 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/QZPJ32404062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbab6ed077ec50dae68cf6164f139d5555adaca3aeb2a88d53e9783c4d0112cce. Chain 2 (Bitcoin): anchored in block 957583 (2026-07-11T15:53:17Z), 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/QZPJ32404063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba694d5f224a16934f65eca1da920f62f267e169fe6f6bcef2767adf9ebd0c76. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/QZPJ32404064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc1801f0ad6e08a43082c9214c141ee81a378945bef5ae78787040f33bc72673. 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/QZPJ32404065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3e73896a1f7745e048518c6e64b5049dc6ae147318b587380c8a2ebf428fd07. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/QZPJ32404067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00c84d1e0e3a5b4b30fcf942e619eda3671cb827462c725eefca807795241f04. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/QZPJ32404068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac5f17c1e3a9733fe29630011fdd3a76c3d7610ab6380a0f3cadb5ea2d06ce8f. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/QZPJ32404070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7720c108f583d40836ffd9d41a6dcecdddd7adc2d549e265239e905e23625af2. 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/QZPJ32404073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ec9aa5b0fdab530ce5a233fa8667b18a377f216c676bce4fc02e2335a5eb2f2. 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/QZPJ32404074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63fc5e92f331f21fee23c7efd090a225273ccf7490e75427fdb9022f7b7ddacd. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/QZPJ32404076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb6be89718e4209ff43dc258f11e459426f5da64ffad1c002d55d892ae088118. 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/QZPJ32404102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x499c5e45f601a24bff73848979706c49f3dc847ebe6e9ccc09e52bb44669cfe2. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZPJ32404077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c91063a6ba7e30a360bbe2accc23a7764a9df4ca30de280c8c0aeb8c28ce7d3. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZPJ32404078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0efac3dd31f94ebf434b841bdf82ecfe2e329a98309de52ef3094e8f11f09fa0. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/QZPJ32404079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0111693c5d75ba3f7be91ab9a4060ea506c08f4308ba15139f04bd5fb4c0894f. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZPJ32404080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fe1ca8442bd055a1e697343d9d22f9b0255e07005e0fd35f3527f93c35fe0d7. 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/QZPJ32404084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d96658d0d5f11140c5ed04e62357523f7aaf11596a66db0e53e4d372f127dc0. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T20:08:48Z), 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/QZPJ32404086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90ad4ecca330dff72a1c68ee83cdf8127213930b10578da10e241ab1f26f946a. 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/QZPJ32404087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf59ca5f8aea1aee1e70b4762063f6e05856a58415e2d57fd4175b91c808ec701. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZPJ32404090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23e78896a9f6a04881cff8e4befe1e00f84f9077d83b2b196dd6e3ca02c518ab. 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/QZPJ32404091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb092150c9a210e8a0af73ea4e14f5e776a0f9a85796ffc916dbed59136740765. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/QZPJ32404092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb0c69884edd2e6e95883a8ff603148f09444cc2470e626facfe24b5f0eb5a65. Chain 2 (Bitcoin): anchored in block 958720 (2026-07-19T10:53:46Z), 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/QZPJ32404093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3d5ce37c1ba092bd0607f83816997e7069d852bffbe02e5b80fb1cff888aa9b. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZPJ32404095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0695e093d285e44204e02829cef4c0d31668e00e68d21f8ee13e1fb93965943. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZPJ32404098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84471f713012990055bfdd34d02b85750677d1d3e830d3f068f46fca833a9769. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:55:22Z), 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/QZPJ32404100.