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 0xe2ad6a4233d7206ea0007c3e7fd627b4845911abd0a090bd688fc6bf92a27c1b. 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/c6ebca6e-ec7f-4e31-8345-b4b521369685.json and https://artists.proofprofile.net/proofs/artist/c6ebca6e-ec7f-4e31-8345-b4b521369685.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Relaxing Ocean Waves with Gentle Rain and Calm Rolling Thunder
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 0x4023e5b10aea16336ac9f4d88c2b9b3de828565670179eac34877121fb07d25b. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QT2VB2433679.
Coastal Ocean Thunderstorm in the Pouring Rain
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18965d08474130e615496c0b9e9d26e5d1f713fcd6c65d4fe0af8ec79a2e3120. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QT2VB2433680.
Soothing Ocean Waves with Distant Thunderstorm
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49e2fe8436ed6724c3d1a2b27d8646ead781a4684ed2072721d2b657d02eab96. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/QT2VB2433681.
Thunderstorm at Night - Congo Rainforest
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf07ff4fdb99ded6b4fac7c45a6236ed9df96d245f2d898e403da259fcb9c2023. 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/QT2VB2433683.
Heavy Rain and Thunderstorm - Bowen Island, BC
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3505ef182cfb72d89388de02fd5f80902de1d837a4cecacacf3a18dea1b27d25. 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/QT2VB2433686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23c7ecc7ba1190b3bbf36912571e2ca4cbb5d01e5429d88b64caa521d6507bda. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/QT2VB2433682.
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
Gentle Rain Thunderstorm - Red Deer, Alberta
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e068f361beb3696622b0cec60474304248e368d2d1e9e04489f458609c2cfc5. 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/QT2VB2433684.
Rainstorm with Thunder at Night - Amazon Rainforest, Brazil
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fa25eb1af94b949a778ae682cb88d1366190cd976c9e6e34756bce49e0eca47. Chain 2 (Bitcoin): anchored in block 960314 (2026-07-30T21:00:46Z), 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/QT2VB2433685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefc5d729224d857dbbc4de0fcab4e984cc52e231c936aee7f6717fbd95c03dd8. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBSMU8566436.
Pouring Rain with Thunder - Ponoka Alberta
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71c49e6b10c55841d3d18460ae6d945a567773c87d50172793fb32458572494b. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBSMU8566437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a25e341ead2f020ffd1e9358df6ea287dc49dbfba8f900031021e434f66ffbb. 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/GBSMU8566438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2f6c557da3fd71597814fab0211174a8f615ef7ce263645a992927e44367404. 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/GBSMU8566439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ba2b7253b752a64f24f7f500984efcee801688b414fd94655451aacef9b8a08. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBSMU8566440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d6158a48843ac95aeb31f3949434f6effe4bbb91394649d2303a9fe76d71855. 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/GBSMU8566441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe08f8154dd4dcfa6e9c79946f4ffe899c785a6cff3e4694127ec135ea68a60be. 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/GBSMU8975956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc11e3268c9d4bc6db8395f46be9aaab836b96d07db57881556fed2a5cdfb645. 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/GBSMU8975957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45ecea626fbfa596e768940b249e4f0b6a61526a9267c5294bf6232cc5e996e1. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBSMU8975960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd2655df5b5f8689833c78567df87ff11ac3b8c6e1570112180cb6580407187f. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBSMU8975961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b33b9424b3a247997e02f13e882b94903780ad3d189c34185a8d7263b4b1de2. 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/GBSMU8975962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c42329af94b69ddf0f081cec075c21d8453c6df600bf6a05ddd7ada03077a66. 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/GBSMU8975963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfe62791b0a35255ca8201e7714dfe74b502fee2805e16f478a2603091a52150. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBSMU8975965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6f6c0b2c729d1a3e8e63369ae89f176316a85fd2c7cf4ac79f04088bc8b611c. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/GBSMU8975958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58bc851b62bb654dd548dd7958855dc97e59efdfc93abf422d054241d896d35c. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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/GBSMU8975959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8df78f5fe2076958df46cc08bb79b6a6607c6a79127c988b4cc87daf8a4f7fc. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/GBSMU8975964.