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 0x77b9019913da7eba1cf681e2e93edb32d86d110164bb03be69a2703763791f7c. Chain 2 (Bitcoin): anchored in block 953773 (2026-06-15T10:40:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c9df15e0-9db3-4f57-8399-e63100cb209b.json and https://artists.proofprofile.net/proofs/artist/c9df15e0-9db3-4f57-8399-e63100cb209b.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 0x7f7f87eacdc8e851a78867ac9e99779d275cef0814a9b22a2a41f04cca1f1d0d. 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/HKG732154163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcac72f00983008685f86b3d0ac47df3957d582ed32483b2af23b3af7ffc4e31d. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/HKG732142395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb52330828d82eb26adb7bb9cadd2d6842ff2b6e181739928521a5b12f7f270e5. 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/HKG732142401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26f377a0b958374f41ff08768478d7a17eb36be3875473a701bf389892379fb7. 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/HKG732127263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85f25d42ef93524d3a11acb21fe445c5791a958bb90001fd6efa62ef3751861e. 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/HKG732153085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2469d80bf2e690a8d3fd90d82962574e0382fe63cd11cdbcddce784aa7bc12ca. 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/TWAE32301674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e62e084618e70bd218c1aa66fd19543ba2fa00c01dc8e272dc7e76682f86a60. 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/TWAE32301346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92d128dc17e3fa8d8daad965d6450a9f07b317053b20d88d126175148d18bec9. 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/TWAE32302236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdce6ed6291b58aad31118e30c00d9f14008074a209ba8aaaa90304b719ed7ef. 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/FR2X42243664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x718bb40a9703dd4fee01a2d9b83466a766367645d83e88dbc2d5de1f410cf381. 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/FRX202224643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36d1d165ce6509255990b0899eeb9e8044ae7f256752416661b44ca099e0597d. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/FRX202224649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c55d636ca287b12da1447b977f8301c525d83024ba9dcf21230039114461275. 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/FRX202224644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc08c39f32f7a47d838410a950139296692f7f8c58c8eda094e558dd0b94bd9a1. 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/FRX202224645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f9048e82a0a44f694627a8c3f5b8614be65f4f0ddf46c2ab7c8d0b090dc27f9. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FRX202224646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa66f6acbefc9a8d81a0187e8050d9065ade89e93367f72731c74d4d4bd548de7. 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/US38Y2510676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fbef9ffe41554f9e2f190617a2138a9cbefdc850118986d5390a340da8fe4c7. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/US38Y2510677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc27b423732bdac20e6c6812536402075773fb612ac8da2ce4db09fe30140ebcd. 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/HKE672400804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdad714000d223b187e8983e5ccceaf8a43ea2163b45ed0183997acdb05576ddf. 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/HKE672400966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x950d1dd03a84a91de05d7b5c369adae2fa10d7f9203d928c7a848ce74bcf7d5d. 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/HKE672401030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x950d1dd03a84a91de05d7b5c369adae2fa10d7f9203d928c7a848ce74bcf7d5d. 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/HKE672401030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdad714000d223b187e8983e5ccceaf8a43ea2163b45ed0183997acdb05576ddf. 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/HKE672400966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc27b423732bdac20e6c6812536402075773fb612ac8da2ce4db09fe30140ebcd. 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/HKE672400804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2469d80bf2e690a8d3fd90d82962574e0382fe63cd11cdbcddce784aa7bc12ca. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/TWAE32301674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3a239b0585624a15415f747dae47f03180399659ead110b8af31da6f05b1865. 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/USCGJ2189658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbabff9eeb0e35f280dfeb5ea3a125876aae8117b94c03771096fe68936c8a196. 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/FRX872017063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb69223c495170ab84ce92c5eaf1176261055cfc8510d198c6fcb2c28cfd79d45. 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/HKE672301183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0655abe4077039718492bca0f6da3335c15b53e5a0578b2bd8e005b59c136ab7. 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/HKE672400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84ed177e92dd04ded357f2179c1661ebbf9fa0b3aa855c27629378b957c7c8bc. 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/HKE672400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8e979506e9996fda4c07320eeeaeeab585f9d96a0b9955d7a50c93cd6bdfc1f. 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/HKE672400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50cded01832ab9206fe7a6078a15d5be5f032ae38ad6f611edd38755ff608693. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/HKE672400012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c42a4ca21d3523d45c915d4b42479cbe378c778b34cc3519180ed7713f2cd92. 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/QZMER2248260.
The Tiger's Apprentice (Music From and Inspired By The Motion Picture)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x862299a8a56043a4f43f0f9b9019e492c840446f810b8a1bfe4dfbff7c3b2a83. 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/QM4TW2448106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3442a539491beedf36c5b358e5a15bc41aefbfda1f7f42e08b55dd1d5c99226e. 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/FRX202542140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59f10b4b474c9590cae656a29eb808e5a84d21f86d0315cdd7062243bb60a5cd. 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/FRX202542141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89e3601c4c5586b0f4bdcfd1f7f271673aac0ac3a795c1c0f01d6d7ebeb8cc00. 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/FR96X2535484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96ba1ee7859e1ef52f4274ccd0482b1672cffc49d08a7a4188cbe83acaed82d5. 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/FR96X2535485.