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 0xf615747873eec1f6a9e1b06e79f1125d8a1bd4172259ed41b17a4ff0ff2282e5. 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/8eaf4493-c254-4711-a357-867216a45baf.json and https://artists.proofprofile.net/proofs/artist/8eaf4493-c254-4711-a357-867216a45baf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Guided Meditation: Ease into the Evening
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 0x4570914459a34730e2ef7177c728078e9d977742cc5da3ecc6301fbceb5dffde. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/TCAJR2592450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13931a3e39654ed466ff8def88057c2fbfa0f2a57b3ce41628c6953a7529b404. Chain 2 (Bitcoin): anchored in block 958870 (2026-07-20T14:07:00Z), 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/TCAJS2592408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84d8b9a9d2317f53c097ee1f4b19493e4dae13d0fd928df2d1f906fdd8151539. 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/TCAJR2592111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61beb65833f298909a606b1c0a398905ba4f4cdd7b9a5de320652183efe9a299. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T19:54:43Z), 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/TCAJR2592331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e2a17d1fba6b57cf0d249e26b54358f812a57458645993acc53fc0e015e6b97. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T12:01:24Z), 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/TCAJR2592344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83da31221526f2cec220c13e9018df7d25436c27530e24f69abe91b6f58f0e4a. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TCAJS2592246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1651988f6410ba1b78ce1bc3967ea55b3b6e80ca5c3e2e5a37372637eeb1c4ad. 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/QZS7J2553375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2e78af86bef170493f3747edf37b2167e934a900ad8f1cce53215526f15a9fb. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZS7J2563715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x139f44e3b79ca9e6ef66f337bcd8dee13f9afc60021dc2a6da0fbbe995b31ef7. 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/QZS7J2581483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7be58e2aa53ad161363e71981a2f9ceb8dba8512f9ab98e15e6e9d5e715e8fc. 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/QZS7J2570855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x667144ae692ce9588819a590a6858724d9fb979de4658c3ccfe0b6386f3be0ad. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:57:59Z), 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/QZS7J2556952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d4bc564eae5c3cff5a19de719283de36fba0e06ca83dbf531390eb06185a2c4. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:22:47Z), 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/QZS7J2535776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50768744f350a9d52efc8c91550ed649667f660bc1852bad21d79358cf7a5b30. 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/QZS7J2528250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96283b3a96b40407346748594ede15c41915988263351177ae8246ddbceb25fd. 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/QZS7J2580076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67508e0fa27d3da877f60a38aff1ae67ca064827e738183c8a6a0b6e752e63ce. 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/QZS7J2569907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe29d5743ae32f6163980c6f3e6b08f1c9b5c44265b814b96d8865c271d224241. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZS7J2584139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d040b13b9177e00c5842afd2e6ca26dfedca85f404a5c2fda8178a337e06a0c. 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/QZS7J2583651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac71590c5200539e979a390735b732f49b37f50b580d4c43b2f8ff7d61332c2a. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/QZS7J2562639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25dedd6aeae6d63a066aacfbc6bd5f9bd0ffbdf1db580a42c5e6cf76d86245f0. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/QZS7J2516089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x086873fcbccaec18123e938744ae3b198a1227f2d0045877aa230b45e86e5c38. 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/QZS7J2512153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f94d4d9a687d31831d286d02dca379176b871734fade41945677fa0a646ab00. 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/QZS7J2519248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf93d529d38c8055b73826b86995bde6d4be7c0ef836f1c4b37ab4c628e21525e. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:39:32Z), 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/QZS7J2541268.