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 0x4ea3b05570e627aefc57d8413e774364e3dccdf43b48decf4bcb22d8661ebebb. 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/0d3b57cd-24d1-481c-9ef9-59dd8a11191d.json and https://artists.proofprofile.net/proofs/artist/0d3b57cd-24d1-481c-9ef9-59dd8a11191d.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 0x766a33203f14a190f3dc713771660e69395712307aa10b8d3b8ab71277c030dd. 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/TCAAZ1174245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe3ba7853f8d1016e251095b453c080696a60173877631cfe3d72076b9fdb198. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/TCACQ1641275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d8a52a89d7ea7554e407d17119e581c36e1aa8e1aa999cc0312d148e7e2ee7e. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/TCACQ1641277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87fe18cfc782e884f3a6975a67ef8ad0290c0c20ec1836a1f6d5d59898e7d4c8. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TCACQ1641279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcca0596f9fc5fe3bf86cd242e3cf80aba4ec5a803cf214f34f886eb6baf397e6. 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/TCACQ1641281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b41c2a789e18db41f63705678fd7667a16b3b56c4d1d3c29907c0a3b7b3e49f. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/TCACQ1641282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc323f932dcff74d6394881b9c6c9ff2413939b5f93ee0754bf3af77862e3f4d3. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/TCACQ1641283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd837f42747ada7ba3ca059f92aea7dfd867ea2f24afbb07bbc630b48efc2018f. 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/TCAEE1938648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcce66d57ac688a42ec70d47a53a1fcf0666946babfa165d669084f4dc93f5b92. Chain 2 (Bitcoin): anchored in block 958695 (2026-07-19T07:37:00Z), 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/TCAEH1952141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe30d26e780d33a874cca29a1d4c6710b9ff4edea3d39b2e34026f431906c4e44. 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/TCAER2073735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b1429465ac6dc7c398ae5d0b485a9565b7a31daefaaef003cb5e29278ff5d6b. 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/TCAFF2080328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39ff3571b862edbb0ce7b55ce3e8b48e3c98cc7caf9b5eb86374e3d203e37dae. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/TCAFO2155094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc4c7c1987466c4a0bbe47dd163e28d2ee4e241bb142b56a60147e78311633c5. 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/TCAFU2134891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7553059dffc6bc7203b6bd5edf4d13ef9c146ae988636de08d1e16790b08718. 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/QM24S2202599.
Everything That Glitters (Live from Nrg Stadium)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8461ae89861191e5c3d8d5c307d214a5b33178623c9e02e48fdc2171bbc192d4. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/TCAHZ2453467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8cc5898e77958efc2f6d319181a152f2ec0bbcb006856009fed11185fdd3d41. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/TCAIE2419677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd65a113c9a9ace2a23da5ad7ba28857097c4bbdba8619ab3be785b8896ed8849. 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/TCAIO2465931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x444eb46fd4889c5ab1962d8dd1aa69acfc1be12892794cd97b737f23c848f1e0. 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/TCAIT2403087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e25b82779b66e2eb9a82885560dac9a0462039a958aecd847c9b441359d6ec1. 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/QM4MA2000001.