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 0x583bf81f790981c127f173f7e8fe28b3539c6fd1ac5a144ff2c685a7c19202cb. 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/8b47e9b4-d731-49d7-8391-38fdde67702c.json and https://artists.proofprofile.net/proofs/artist/8b47e9b4-d731-49d7-8391-38fdde67702c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Play This At My Funeral (feat. Landon Cube)
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 0x424758d5d2503a40166840fc87d9d8da83f00bbe8a9d900d09c534e2741fde3d. 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/USAT22202437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e59d9ce34c7658c5e77847de84aeae86d13309f7f8f0a2fe9c9f79a8f63de87. 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/USUM72022599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40ed79960a837a7a2688da173ded66716b11a7d6aeb26e965651a4ce31b6bd23. 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/USUM72022600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x860eadbe40386ac6d56c3b0e6fe94d545e6f3401716821d7938c74613e84cad0. 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/USUM72022601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb36c8eec724d70e36e1f1ec3ac0e099bfa18d99dfa1de8fbe17f0d82736f765. 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/USUM72022602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb229907f888bca3006555814971c2d6f745a3721dbe76625faa64b925bb05b21. 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/USUM72018699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1bc21b6e0df34f43e5d5c36b5d9d0462531fdb6fcd433a501aa0f09eb7b5999. 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/USUM72012965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe757f97243d876072db27000a94a51c4068b8313b936149d3dbb6ce275b24a48. 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/USUM72022608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc92d619e66ea5a5b5085e7a7272901c4f892f538da2b400d9b271efbe24a78c5. 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/QZWFK2323885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd17a273e4e901cedcb9189e7a0ac3f5553456d368b11218036222d22f98b3500. 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/QZNWY2304946.
Ignorant (feat. Puri, Landon Cube) [Spotify Singles]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71a0a5fafcd90cfe9a6bdcc4032d4583d3882fc496b53c00b997bc3fc18ab260. 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/QZAKB2316063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc5a20e146f7ac3b92ab9f9070417752e0b81fd3f883d40d623c5be234666be6. 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/TLREW2220899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe014e0ae45287b9590a87a498d32c4b8854f447908e92830211b963e670cc45b. 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/QZPEW2288098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc38dc4bad2ce7203304150a794910bcbab52f293270af8664237c15ed9527d46. 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/QZMEN2171238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb229907f888bca3006555814971c2d6f745a3721dbe76625faa64b925bb05b21. 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/USUM72018699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1bc21b6e0df34f43e5d5c36b5d9d0462531fdb6fcd433a501aa0f09eb7b5999. 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/USUM72012965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51d16aecbd2adc2fe9d132971f58ac42862b1da90546a884a34d5943ea5acf40. 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/USUM72009381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4214f02a92961f90909d9e5ed657c52b2ca463b090f2a4c68efe75848d28d55. 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/USUM72001477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x784fe1ca1119445eddb77136489c9b8c680af998deffb06fe4e285259bdef61b. 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/USUM71921829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd50e6fc9185b0f9d2eb213c5cf93b6814dcbe0bea83eee889e758fca699e1666. 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/USUM71920913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdff36b74ed43eda4148491617dcf74b8e437f71f64274311b15724d3b44c1f8b. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USUM71911487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a55830fa0f452b9f702dbc21eceacd4b5aad027f70d7046af37c51af6e1ecd6. 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/USUM71905839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0060a237c79d57e14a43280d953e91d0cc7a237568e2da0884d5c5c49141dd4. 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/USUM71908168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc371646647d0beb2fafd58b4926079c2af28073e4d346d33c8964e120dfc563d. 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/USUM71911491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4e55580047e0edf2558b0c943724ba4e933f4abcfaa52547940f98bfc9892af. 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/USUM71911489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa71b894b2fe9b2d36342a6fc69d5d35ba9043fd33c8b17074cd85c3a5700a3ab. 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/USUM71911488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ef78562f741a596c705a27c8620f8004352a56d38a42a6d44cd34d9c274b483. 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/TCADP1864175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd17edcfbfcb947cd842e5867b4956ab7c1262d9ffb171c579f35ce2ac71a1fda. 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/TCADL1815107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4c04da1d2a3f452564f5971d6b5f4aa6e057a84f1c17abaaf759385deab6aca. 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/USAT21705314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ffc007104182a7597c23cdc74eee9da00cd943f5daf68490bfcc95498d741ae. 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/TCADH1720669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe55f06ebb3800c3f358f626a4f8745b6ca3d048a7065fcd02325c8aade21669f. 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/TCADC1754042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28dfe2c129e8896f6452adda404f9c615f22a15ca2ed6faa184d1c21fb30596f. 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/TCACW1618298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3975b31c440a8a9bcdd3573d457578282de2cc5f8f3987d75843639039b57a9. 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/QZQAY2428521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x493513937fbed46250c20dfacdc878e0dc1e91bab9c28d0caa5fd169ed25044a. 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/USAT21704162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9082efc4a0021eacc039d5541869d44255b2cde44d13eda46206c1f2a10c9fad. 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/USAT21901693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb49624031496204c06821e6b163462ff737ea12ad439e09a9071188322c1c259. 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/QZ5FA1752662.