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 0x7b6001a167b660d682ac0ee586c54efc83cfaf3994047af20532b7778357878a. 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/a2ec30c2-01dc-4fd3-afa2-d69694ff0020.json and https://artists.proofprofile.net/proofs/artist/a2ec30c2-01dc-4fd3-afa2-d69694ff0020.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 0x9aa4bc09b034356644d4819575652f59d453a11fb9d04dc20135efb43d3afd3e. 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/JPH490702002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf727142ea77a4a188d9fe915af0f0165ed018170670d5f21f9699dc7745eb1d. 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/JPH490702005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dd089e860db3d058ade1ab15e2ce9b9c384d3141fdb43574f38975915d9beb3. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/JPH490702007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65d5af1b9001c9f24f59fed11aca02b173239367a033e7909d4dd1392fd2b011. 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/JPH490702008.
Memory of Melodies feat. Dred Scott & Adriana Evans
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3738fceac49ddef6cc87399bec24f66ab18c0cec064e6f3cf879c52fe112a016. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-17T01:01:46Z), 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/JPH490702012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28f85281f2c824fdc8a02529ddb125d13c87cef229a4e25f44bd3ba915ae3fd4. 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/JPH490802042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd52372cb0e9b9ea2b16c842fb50cc798aa60c4c1c9863cd27da51dfc0bbf0fa. 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/JPH490802045.
L.A. DECK feat. Visionaries, Rakka Lrisience & DJ Babu
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd5fe56c97469cbc548f275ddbd4318ce2f228175ff16ede4b72d659f0fcab12. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/JPH490802046.
Keep In The Pockets (Kero One Remix) feat. Nikki Jean
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30583bd9d0b905eac63502ebf94a23a197dd4c877af11666fc2cc57f7965a5c3. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/JPH490802048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2543063103e4b197841cec2ef9a42c60c52f5203257c2f103e9467ae15b18c6b. 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/JPH490802065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabc9f2c06b848956206a6ac3af3fb32e9c8e01e7eb91d63d6db2cea04c0f2f88. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/JPH490802067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55df8c1ac97e4bb3080b1ad7c3df1640e613e2c26b0032e7e6be09531d776f11. 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/JPH490802074.
UNCONDITIONAL LOVE (feat. NICE & SMOOTH)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2543063103e4b197841cec2ef9a42c60c52f5203257c2f103e9467ae15b18c6b. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/JPH490802065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d250e87bce8d37b7a9515f2ae6728c0f8a0fbdf8b248bb2cb2eb1c25bfe141d. 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/JPES01301164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf489765a3e78dca013079e5f13f593f978590b18ee8e50ecce5f04e32950a36a. 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/JPES01301168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5acaea972be87e70393cf3d167c5d2c5dac7b6f762c8fcd19d3ff55dd635b5e2. 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/JPES01301172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2904c474172aa9cdf945802b66645541a02ad1a4c2ea41d2ed69d1607fcfdc7. 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/JPF551400058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5acaea972be87e70393cf3d167c5d2c5dac7b6f762c8fcd19d3ff55dd635b5e2. 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/JPES01301172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5acaea972be87e70393cf3d167c5d2c5dac7b6f762c8fcd19d3ff55dd635b5e2. 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/JPES01301172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0c45748f55496b274c9c98e5500035daff6fd7365e27f152de190c7f4c8b399. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/GBKPL1786694.
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 0x26234634e1ab61621ecb5b243ecdab0bbcc69244b0ed0da26d517f1beef5369e. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/JPES01301169.