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 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 0x9723950e6e0757ab5788d7f06636933e4432cb623b11c8fc94a5e5ef1a882c95. 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/8f420993-19b6-44f6-a8b5-e7a874d92d36.json and https://artists.proofprofile.net/proofs/artist/8f420993-19b6-44f6-a8b5-e7a874d92d36.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 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 0x8d2f30ddd90ba0cda1771c3cbfe1e095593a0746bc7687a99b6b96dfc7372192. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZTAX2403993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9723a2c67e2e5f4c6e31e82ad36aea5579beac21402da32309bca75d1d906c53. 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/QM6N22450569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x170e6c7747c4b8a95bbd927890aec09dbb83924324985f2097150d6a468caf7d. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/QZMHM2429976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c62bda762e26aee677c3e890f0207ec806182de9e4dafd9392e883ed62a2558. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/QM4TW2412977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf969846d922bd15a1a34bab58dfa630304eac822eeb0d8db0963a6049901fce. 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/QMFME2352428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4525df5acaecda3ad9c66ba437e26668696965d2d73cf004ad2e74976dbac12a. 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/QZNWX2112030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9453dc0b2415adce59f52578d467934d84406564ed288ae3428e3881b1821a40. 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/QZTAS2255576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe809ebd3914a66b382f16fe9eccc85f6ab0bc7758c6c8c79589eec48fcf72572. 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/QZHN52323637.
RUNNING UP THAT HILL (STAR MONSTER TRIBUTE)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ada90518ca1d67807d493c6cd3a80762b20316a2473dff02c38dbe58ce3ba39. Chain 2 (Bitcoin): anchored in block 960179 (2026-07-30T00:39:11Z), 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/QZNWU2273259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b7bf587ad2ce6ce984f7f43045e4361c08a62a8004e885ef935eddf02a61931. 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/QZDA52340113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa81840d650325bcb7688d0c2ada7c4da94f834ed8755b8cc1b1eb8832fed1c32. 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/QZK6N2338006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa81840d650325bcb7688d0c2ada7c4da94f834ed8755b8cc1b1eb8832fed1c32. 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/QZK6N2338006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf58cb01a49801911ac8e947dd1dca8f9e439f37c995fca509ece15dcc5137ff9. 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/QZTH92324909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f029cf1e6acb03bbdc1738b50481a843ad3124bd3af4e09d8b6f0011bb04159. 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/QZMHM2306716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b7bf587ad2ce6ce984f7f43045e4361c08a62a8004e885ef935eddf02a61931. 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/QZDA52340113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf92853533289d8532dceb12c6a773295cc4e8dc45213615bf19bf90e3da7d243. 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/QZNWQ2276918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6015731082208a375157e4f979a38e29c9ec7032bdc623a0f2c7001055818a9. 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/QZNWQ2276919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c57618ccd72a7225cb2ce26f917486e822f45fc27b9f7b341831d95fd92a93a. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZNWQ2276920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63d7d9325fde0402998140fd1cd4346441fa1adc020839bad902c9ff992e6894. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T16:23:52Z), 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/QZNWQ2276921.
RUNNING UP THAT HILL (STAR MONSTER TRIBUITE)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ada90518ca1d67807d493c6cd3a80762b20316a2473dff02c38dbe58ce3ba39. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/QZNWU2273259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x034984c684ec641fbb0d2e3158fa3d9ea626abd13c5e514682f7da9a22ca4510. 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/QZHNB2228808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd309447b33cc0e1e3f1e1043e1d14db38c00bd84da5531e3eaf9b40cab828493. 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/QZHN42282457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3838063b292554e44120d78e825fa7924921f6f5e0d0c51f6ce8952ae64b8a0. 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/QZFYZ2234441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4525df5acaecda3ad9c66ba437e26668696965d2d73cf004ad2e74976dbac12a. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZNWX2112030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23bf81d2b9589268d0a5ef06fe8b0ed0789273eb006bf7f5320470ddf0c7848a. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/QZNWS2145358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bf92187d7f22d3bc85f81c4aa5ac5b882e8e89ff0ead59710a779e33a90c5a9. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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/QZK6G2117285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd9aa85432a7fc3ee27d5f564b467f508c5dc714322ebac05e9e53093c1daae9. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/QZK6L2117209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x229d64dcc872cf8dc9420cc8ef992f55cac464a1b79558c8d1a236983624bee4. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/QZK6G2117286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dd60dae3d87e5826c07f716fad131899874d55d7ead2d6d1a11e7e8c961af75. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/QZHNB2155535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29e1b487c04fd08b2ff746bf3e853d3f9d7339c596ed74cd932ecf4ae9e37dae. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/QZK6L2060047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f9603bff86afe97cbb5a6b860fa02a218ed7ac6d5b862eb543f426a9799f7f4. 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/QZHN32058363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6567aae249ebd49dd368f38961f5ef233bd3d41df349090341f8da8639b2316a. 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/QZES82007872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8064f572c59063e3ae351441e2dde87f88c50bf62bb555ea3474e0eb6e0c40a. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/QZES52047105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b2bae3f56aa62604b93801a8ed360aa553068f3959e79af0aaeec76d44b3993. Chain 2 (Bitcoin): anchored in block 960349 (2026-07-31T05:23:41Z), 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/QZTV32314950.