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 0xc696cb35a152ed343c03e85d38f1ea846f3419b3fb9380bbb0593c58e96f65e3. 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/9303c861-6612-419a-aeb7-717a5cfe3541.json and https://artists.proofprofile.net/proofs/artist/9303c861-6612-419a-aeb7-717a5cfe3541.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 0xbc62cfebfc6d47e39f3729c1fffa8dad7309571bdc2673eb61f4d813618d6e77. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/TCJPN2172677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ebc550a71447577ab370b0cf6114bd47714aa4b4ee51466cbe21a7083cf3a31. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:13:38Z), 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/TCJPO2181961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a989fb5dfece3cbe6f0ed59d75562ae2430685708ca2d538e039c94133780d7. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/TCJPQ2140062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd244ef9daa3b772fecefecb4dd7b787b1828680359e3ca3445aab85765ab15f4. 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/TCJPR2232013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x088a7bc533e6316af1cf9f6b09db278143ea9398f04934b90ec01114d9e5925b. 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/TCJPR2253923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb4ee43b4b6fbb2afdadf4a069bbb7335bd5b9389737a5c88c8b42285b878f13. 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/TCJPS2223167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b0c0e8cb593498e077277aa045c5865e0011f9515d1336730c4ed9155a6c067. Chain 2 (Bitcoin): anchored in block 958864 (2026-07-20T13:01:58Z), 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/TCJPS2278056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9778925d7227647c709bac5aafdc67bde7fecfc56d841ba780185a81bffd72ec. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/TCJPS2299483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b4b2e7989c67851dc564de8a19f7ac9ccd21ad2b1c807d5d01740b488c21bf9. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/TCJPT2257881.
I Could Die For You (feat. Yudai Takenaka)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31345159dfd0bab5eeb46ca43b2a9f26157aeb26c3c691568539a540d371c4da. Chain 2 (Bitcoin): anchored in block 958670 (2026-07-19T05:26:23Z), 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/TCJPV2315964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb95b9041344ab1694473c3bc8dd1ee125d774225b5a5bb5a38d62b790d37381e. 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/TCJPV2315969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdd5b88baa3e1a55a940d6acba6a716fcd9fda4c32df3c2a459d1d4206d17a0f. 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/TCJPV2315971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0271170fdc335f1c0041a9e6a55b735cd0d1aa43ccc18b0d4b2ced0756953984. Chain 2 (Bitcoin): anchored in block 958086 (2026-07-15T02:55:47Z), 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/TCJPV2315972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06de5b58aa4287e22b9ea5f0ce537ce8ca7255e344ef3946ed5d73d19a8aab86. 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/TCJPV2315973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x745c1183cc9922a3f48e912428af0bf39c6fd35dc5348895e5da7b2d93a1a8bf. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/TCJPV2315978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a8545a8235ddff69f912862ced21192beaddcf4c5f07e9de9ea93e0087d1b6a. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/TCJPV2315982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb95b9041344ab1694473c3bc8dd1ee125d774225b5a5bb5a38d62b790d37381e. 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/TCJPV2315969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdd5b88baa3e1a55a940d6acba6a716fcd9fda4c32df3c2a459d1d4206d17a0f. 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/TCJPV2315971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc762f5daf27dedf70fd7efa87edd826538f8e870c71aeb9abb24a0d0eea5cd20. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/TCJPV2315981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37957a405ad9bb60525f3221ded1aa0206093427a240a613c4c2ea5a9dbc29d1. 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/TCJPV2315984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95e5310991ad0b5f5773dabdb7f75f3548960b5502b7184315743172e6e269ac. 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/TCJPV2315985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1d9c32e80435aa1b4676a6991ddf9c70cc9044600c453260fadf4cec5490428. 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/TCJPV2315987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x351dcf71f67cb5201c1ae96288477e45d3075778021467f61255611ab112f49c. 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/JPX522400023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c7e662d4495548ae67cb8f7c800460c8c869d0e0b38774493deb340c4a9d998. 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/JP92N2230994.