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 0xdc7af3e47a542b55325688e3f6360ae1183d94fe0b0ef0669e8b12ef07f6ab5b. 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/a4f74614-4e33-4fe6-a8ef-53cfd73bdfef.json and https://artists.proofprofile.net/proofs/artist/a4f74614-4e33-4fe6-a8ef-53cfd73bdfef.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6dba355ac660c3f46a8201254cced859f024f45863e5ae30df62e8ea14c8ddf. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/PLB821800101.
Twilight Of The Gods (A First Step To The Mental Revolution)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ee96f161fab4ce2f3dccff827112b085750579f839af6903f138c4875ef3575. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-21T08:54:16Z), 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/PLB821900446.
...nasze jest królestwo, potęga i chwała na wieki...
…for ours is the kingdom, the power and glory…
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f862a001c1da657f00e4f41aa49425605a6b2ab0e80ff1bc45966b102af0ebb. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/PLI361035360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x975bd14f989446c5869a96a491f544fd5179580b5f1f76d73e6a5f4e4967578f. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:14:49Z), 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/PLI361035380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x214ba31bec604772891455a12cc465eda6dc494cd90723c1a8604dabd623ae9f. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/PLI361035390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77e230cd71a7d1bbac3d25db52554f932cbef0340e806cb0f8267d697d40ea7f. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/PLI360748040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffb796c31c5beed7a4e98a9d30afa38ade7d3fc73f93ada7257c796f11817e3a. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/PLI360748070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd3e6e3e70e2efe68f955a8a03da7c77c26bfa3d01cc9a8ec8b3e95a37e77661. Chain 2 (Bitcoin): anchored in block 958706 (2026-07-19T08:50:34Z), 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/PLI360748110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32f453a6f3c9a51bb9f0f22b4bb057eab572f01ef40c08cf04f3d1560f679395. Chain 2 (Bitcoin): anchored in block 957690 (2026-07-12T10:16:40Z), 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/PLI360748120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e8c4cdfea3509238078d7b0d87cbcd7fbde37119b87c8b558d4ecd5ebc2c246. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/PLB820010181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3310a9c601c1b462cc64e05471658ac85bf168a9428f4d4db9750609dbaac5ff. 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/PLB820010182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87a4d16063a155d9ebc7a5e39c5d18323024161af206970d2e2f941b6f49a5ca. 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/PLB820010184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe87ce5efd354f76e8b59bc70bbcb5ea488af820eabcd0c21bca611cccfd14479. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:22:30Z), 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/PLI361680400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11bb7f15e42f25ea72b5117faa07c71ad9828009f03c4eb1fad0b75fdbcbd0a4. 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/PLI361680420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ad8949f2f96da19ab98a630cbb58642b14ba59439332a050a2007611667acb3. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/PLI361680490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fbe32d8353e12df4108c12727b085bb0223bd08a25ba6620940f75af8a757ab. 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/PLI361680480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfa7664e55fd4973942358819130a9bcb0b021aa7e57e58c944cb2b207e2ec13. 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/PLI361680440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd0fa7ffb469d24c79f78d80919945c76d16862f1234f6ceb97e61788c74acf0. 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/PLI362132470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x931c9443cca45faec9eb02c6c354b5f7c2232e4bec19b1eac79855f62e86be86. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/PLI362132500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f25c40c81507eb75e75b7e1ee21687d18a97061a6ce9affe0b1d4fc030b254f. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T22:48:06Z), 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/PLI362132530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9054099dee564447e6538eb8367a54a8c0906fdee66a79392b1e0d112d74ef91. 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/PLB821800056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf05a373648721931087ff65fd35bf8d4b3e795b2af718f332bbd504a92e5fb26. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/PLB821800058.