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 0xb266538851713a8edf3843f8b4cbb3fd3f41f9216206a568b2160b0019dd8b54. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e6783e60-25cb-4329-b12a-1a047790e26e.json and https://artists.proofprofile.net/proofs/artist/e6783e60-25cb-4329-b12a-1a047790e26e.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 0x91a43fcf3112b84d3074a69a2d2e246641917aa1fd83b64341b869efd392dfcb. 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/QZHN32175323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11b0b30ba6794b37af695f6672d7568134f81bfbb9ddfd20efff757de26f2b2b. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/QZHN32175324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70046bb6b716efe2b304c52c5060f2f3ddcc319a4a41551166de56aa853e6a6e. 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/QZHN32175325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x265cd606d6e2a071a8a50d14f9f576c9cf8b85b31af318f580a351cec6f5148c. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZHN32175328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe015ed42aefee9446eda9b1d76ec8b291fce05f325da7b3374ff9c4d7cdc1100. 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/QZK6L2111707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe015ed42aefee9446eda9b1d76ec8b291fce05f325da7b3374ff9c4d7cdc1100. 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/QZK6L2111707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37d005184594031bb46471c958da4e4abb054af25682d4e85cab70d71c85f563. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/QZMEP2104351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x971aaf92fe374df3387cff75736abf723f85ef6f3bf4079ebf3748ee87abe9e0. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZMER2180098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca2924b6652898a80355a189a59fd48ba5e9f5b68e20f21024cdd5941e625ee6. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/QZMER2180099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5bdd84d93ab7cf96f8f526ca213fdee9d384dc47c92899cd8765e157f92f49d. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZMER2180100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0867fbd99d1a6370e675f351811a3c3e601b483b2e413ac13d0fb1c95f2b2952. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/QZMER2180102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa216fe764ea9f1c7b7f8a77bafc1445245d8ae954c3deed363014c9e82b3a936. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZMER2180103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3a0904a91403160f1f9edf7a9378571a5f3794a262e8361f451194e2b9ea301. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZMER2180104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e2228d8aa98c5cff4e48ad9a1c72e58b77a67200401935a6811de87cb95eb09. 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/QZNWY2145905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e2228d8aa98c5cff4e48ad9a1c72e58b77a67200401935a6811de87cb95eb09. 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/QZNWY2145905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab5b6961b890495c5808a2b5f549c715b0a1fc9c571265f9f8706b835b4c93eb. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:49:43Z), 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/QZRP42170014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab5b6961b890495c5808a2b5f549c715b0a1fc9c571265f9f8706b835b4c93eb. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/QZRP42170014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6602cc5941f3403df06f880c2b069fd5704563bcfb4994cc595dfe15bdd4e331. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/QZFZ72204853.
Youngest Turnt In the City (feat. Murdock)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6602cc5941f3403df06f880c2b069fd5704563bcfb4994cc595dfe15bdd4e331. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/QZFZ72204853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb732713e47f11b60b66a8192e00e5fd058ef12400a923c4f0459a25eed533efa. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T11:49:19Z), 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/QZDA42257323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f76f8e14d46ed5d99196eecd89e23f45835ff3ecb5ec76fac9ea3a658797c89. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZFZ32337889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f76f8e14d46ed5d99196eecd89e23f45835ff3ecb5ec76fac9ea3a658797c89. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZFZ32337889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e5ccb4919b6c51235b44175f80181256c2f9c74596eec19dcd2e2ba23905172. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZK6N2485239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e5ccb4919b6c51235b44175f80181256c2f9c74596eec19dcd2e2ba23905172. 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/QZK6N2485239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b1923496e321c841e09286bb8d2ac9abfe8118acb4716e23a5e131dac10d065. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/QZWFN2420109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e9eed904f6057bcb7a75e179609b1bed047cc28d635f5592a0cef05b317e09c. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZZ782482740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x665edecb87e105fee3d3f744efb777474fec870e3aa0775f16086ad88e789d3b. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), 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/QZZ782482741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b1923496e321c841e09286bb8d2ac9abfe8118acb4716e23a5e131dac10d065. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:09:10Z), 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/QZWFN2420109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fd6f60a72cc96315e2f4e0c83461306056e891bedc5295af5c29dc4ced05d46. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/QZZ782482742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5dae12ff0dbcc58f35a9aab85f17064014bca961000d0262972be62c7ed8547. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T19:56:26Z), 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/QZZ782482743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14a6c0a613e4e9d55db30e268dffb2e760c0f1a0c9b8a2753bd742a3c113f359. Chain 2 (Bitcoin): anchored in block 956862 (2026-07-06T02:10:22Z), 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/QZZ782482745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97f7c9ed76d6135c3d69c719e144ccba5283cce21fe3b5eaa46ac2b127c8c81b. 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/QZHN92540015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8ebd33eb041517d3473477b8f325aeb3c38e7fd8ff1d34aab9cfe81461f2e1e. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/QZK6F2584581.