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 0x73a4e246ac4225609c78774e90e31b26307853b84c46fd3d86b8b0f30ab175c6. 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/e583df5f-087a-4054-ad77-fff866c69e35.json and https://artists.proofprofile.net/proofs/artist/e583df5f-087a-4054-ad77-fff866c69e35.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Summer Camp Daydreams of Ghost Stories and Mandatory Sports
Ferris Bueller's Day Off But It's Actually My Existential Crisis
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 0x5d76bf08f5471c78baa27d67248a05889b868f7c396ddb4d6871e025cd913c1d. 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/UKZGC2301910.
A 90s Kid's Guide to Navigating the Ups and Downs of Love in a Postmodern World
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8096eb687aa069fccf6acd96f63d18616d0749579e9f4b2c5291295f0b45871b. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/UKZGC2301906.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42efe6522024c4d69fb6cec0a349d997ae572fc095440857103c69b9b793cf8d. 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/US3DF2249279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1ef72516b8e8bfa347906beae992f76742823890f88725344ebad00126479f3. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/US3DF2249283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0a586bf729454a8e73bb153c12e463dafbb0a7b238258f1fc6e1ebb187a3261. 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/UKZGC2406703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37048e6d12db8c67632ba1cb0c0f8017495a8cf795fedd6053f86f34d4b07665. 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/UKZGC2406706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf719ff47012ee87cfb093d55ba0ad4acd2d5735a4dfa5d23a05d0792673047d. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/UKZGC2406702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dde84d7d3bf96328e0ad2477610a66a39707f747d68105eb9bb902e7b20b673. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/UKZGC2406704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4b3ec41b3b280b07b67fedb13033fdcc1e09720f15e708065b026567255e26e. Chain 2 (Bitcoin): anchored in block 959109 (2026-07-22T10:02:43Z), 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/UKZGC2306248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd9d4603532c57994cc96ef264939f0740561db012b66e2320fbf1da16fc010c. 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/UKZGC2306249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4502ad4b920f465c22ff561c1f34f7a2191c17abb9d32fa6fe311999ee28dbc3. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/UKZGC2306250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8369e376f3308ce89a820a96c46d73bb0f3baf873374d7fb30777e9cf72b62ff. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/UKZGC2306252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7516988668c6a78353720b3d2aa1d37b1d54ff186ed30a2e14bf54dd6ee0cf86. Chain 2 (Bitcoin): anchored in block 960170 (2026-07-29T23:52:38Z), 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/UKZGC2306253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4145176b95ef9c255dc00a13d5d105183e635fbb52e217f1368237ba30901b2c. 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/QM3DF2186158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63001e8f2d3a187f7f903288a8c9b8148b59705d3657add85c2a898189f1d067. 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/QM3DF2155951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00529b806ccae92a31dd64dc753486d14ed85a791fe4cf468e147b62096f71e4. 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/QM3DF2150147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ac782d5f1045612b8469940ac8cc88e9926b328791894a6364ec7e8bbd47717. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/QM3DF2150146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0084fa9ca33687c39a2e24618c20e5d31e24ac7fec9fa02fb82a55fa82ce7eb3. 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/QM3DF2135815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa0eb334a8406034ecd5571072b8bc77d943e071a278e1ccc8f3d4cdd1756ed0. 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/US3DF2195967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bbcebac966e60ec2b9a22eca53abd2013eb94b3b6b6ec97b26c4d421f229f34. 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/QZPEW2100734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b4fc234fae328d576b5fcb8902eb53f3050a44fa21782f3cda90a5e732acf36. 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/USANG2181111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63eebf30d2c84cc1de2636de66fde751edd5b2b7ed0d6d2e9b4953a634a38110. 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/QZNWZ2039078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3460c33d92fefef64c52b1db76f504355a73fc4541aa96342d0a61f9ad5faac. 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/USANG2152317.