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 0x19f0dfe1e83b6f7da9c0314b7b788cb086c6b4a8a1ef0887dc2217585ca23cee. 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/5528c406-421f-4a98-addd-82138bef88ce.json and https://artists.proofprofile.net/proofs/artist/5528c406-421f-4a98-addd-82138bef88ce.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Pop My Trunk (feat. Big Pokey, DeLorean & Fat Pat)
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 0xde3497450a1389f42abb53a2d68c81364bbf0e7aeccc221b898fc2c9a1f46e1c. 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/USKO10800551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9ff87f1ff29b7860d4b7e5cb6c871fefea2ab34b1968aad93146da9d0130482. 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/USKO10800564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb466cfb37c98ab53e4559f64ebf2fe53b665f1f55238fcb3067ababe6d012c2b. 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/USQY50916414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4d4d3253f0c13a1ca3d092d196a7f00d1c5690318dbfce1c1f14388d168f4b4. 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/USQY50916450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5403756a58e42e2941866a515f9ac28a67f0a172b834cd7cfade74df9a56469. 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/USQY50916453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72d9d2a8eff01c7454512d47988e1f5ad194e7236cf48939c49310cdcdd3a515. 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/USQY50916461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5acd4e096514081ea86960eed47c918558b6ead1a26fc6d9aabdaf9936fb7452. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USQY50916462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52a4b210672a0f8103736310e106f1204dfcd4c7571816aed362da358a13deb2. 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/USQY50911181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0acc9072511a3e56f42f263919686b79e3ecefa9938ea39b87f07bb277e1b6b2. 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/USQY50911183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6902c5a306f88f5c3ff29ac11ad68afdf4fcf79f1d17b8d354e800c3e7b76dc. 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/USQY50911189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0558f67db0fc59fa579444e75617b466ae0379925176f13b7528a30eaafe8d65. 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/USQY50914088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x963a8676b8f91819424931c18e42b0dc0d46e358721b2826807f4428b04c6768. 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/USQY50911216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36c819bb23a983ae8675c08ffd7a17dfb5b64de9a062506af24fe40a0e08958f. 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/USQY50914100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe82010534d4fe643c8a817a939e85fc5f0da82d11a7b8d7054fbb7fc6153db68. 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/USQY50926463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f424059f2bf9241a71092f0af522b478f5b701bf4a6aa876bc25e6b4d624824. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/USKO10800555.
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 0x27b5bcbf5723305cc41cc27a16c614428bf4ada8307ebf007067037484dbde10. 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/USKO10800563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa698187d8d4ed31201b33387524dcd983bd4bbb3ce964ea917a0b48c03ba2ced. 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/USQY50916378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36c8e027f07fbf3aa30776b194817665a8d2fa7f58e1fcffe4f2fb9dc3a774b8. Chain 2 (Bitcoin): anchored in block 960288 (2026-07-30T17:41:38Z), 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/USQY50916388.