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 0xdad15a172c5b62d79fab56fcfc836680e0efbcd3e2bfdd93d95460f399cc9e8d. 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/4f247265-dae7-4fb2-82a7-08d4eea21cf6.json and https://artists.proofprofile.net/proofs/artist/4f247265-dae7-4fb2-82a7-08d4eea21cf6.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 0x8d5dce4cf021221c1c36daeaa3bddaa15c3fc1e0f7efe5a8eb3ed59c18668be9. 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/USCGH0926330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb392bf211ed9e40ea4ea7c5972cfdd1de8db9a21fe078eb3d75a79843e81cb2f. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/USCGH0926331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bce3d0092d6786992ca12ec908d71c2fe0c2e7c1f0827bb785abf89e246b31d. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USCGH0926335.
Be Still My Soul (Simply Classic Hymns Vol 2.)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc89eb369985c68e826368385394fd8d6366b1163696901d4ff78017b947df5e. 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/USCGH0926254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fbb4cb10272d8c64cc5aaaa820ca011fc572958f7c0763e98de54ebff7015fa. 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/USCGH0926255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd67eb19ffa6d246371633aeedd21b320f8d71d499b84135a1fff5336d03dd8eb. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/USCGH0926257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd157cefbdba1d4f9295ec44c012e820d38177bb37710edf7ef3f3c7b05569863. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/USCGH0926258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaa1b1f9e1cbed539ad35c8d47dea73f7ca5276b531d5bbfd0966454ce58ac6c. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/USCGH0926260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5d5590c56fcfa374169c3d365c8a5b4ce920aa101c700a9b74f86bdc9cdbeeb. Chain 2 (Bitcoin): anchored in block 957647 (2026-07-12T03:57:41Z), 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/USY280734550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd869a87d2909238cb12a2c65c931282b3fd552655b2bc2631fcb57b00f312c19. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/USY280734551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdf9e084a615ad8fa63deadd17d8d4fc60f8e87a72aefa45af8b9a809e16c1ab. 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/USY280734552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc872b58107883f1d4c6213fc8ef1c50f1082cfee228a070961c561048fcf0416. Chain 2 (Bitcoin): anchored in block 957650 (2026-07-12T04:18:57Z), 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/USY280734553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82793dd1180c7eaf67fba3b77e30ba7b131ad7775dc5625cfdd965445e855075. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/USY280734554.
Jesus Is The Sweetest Name I Know/Jesus Is All The World To Me
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b811fe6eaa3dd2d4a99143797ad6b22c19edd1516b39dc9b91643150fd6b6ef. Chain 2 (Bitcoin): anchored in block 957648 (2026-07-12T03:52:24Z), 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/USY280734555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a777a3e7b8457e4a495c0f04e9476f26e6c169bb74c40cb670a5bb2ee5d9401. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USY280734556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39220f5c38ba485da5daa6b6a3702f9ee1f7656ce7dd9cfced6712432ca51708. 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/USY280734557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07276c13bfb42a6bdcc50b8d89976f595090d07550767723eea4b4764c6b010b. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/USY280734558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8610215d7c926249193f25c92dd2d76731b1422a14409fa953deb37d6285db8b. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:09:14Z), 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/USY280734560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x456167585c3c9e688bfd5eb7d325499d18980858bcb608c9be8116ddfd97ac9e. 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/USHM90740600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e5340b186618449c572a68ed843a967dad1055b9192b27592c1952f86d7e21b. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T10:52:00Z), 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/USHM90740601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x016d35db981779f20ca11e028c2e03a67d99c68e9cc0d1068b09087bea6659d7. Chain 2 (Bitcoin): anchored in block 958554 (2026-07-18T13:17:01Z), 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/USHM90740602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d9f5e991fd19029bb5b678e54ac66ef7d53e8acaa6077659cd67c1cabaa5f53. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/USHM90740603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa013816ac62efba171378605e0107eaca256e27de38425e5a35d00d6531c320. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/USHM90740604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cd2b8dd9d70096bfb01f6f6c1ef58efe650ece46d8ef7b3b30496b09947b479. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:50:55Z), 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/USHM90740607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c0f169c5513f80eb6cfb29402dda61e858d0df015c555bba44dd4b89a12bf9e. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USHM90740609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c5f0fbdd37d0a12788bff367b907cfd7ce744bab8f23494a1a4e3b7adaa63be. Chain 2 (Bitcoin): anchored in block 957650 (2026-07-12T04:18:57Z), 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/USHM90740610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d1b854925b970dfa29631bed10680fda5dbc5b28d4b6cd00c6d1d1447b51430. 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/USHM90740611.
O Come All Ye Faithful/O Little Town Of Bethlehem/Joy To The World
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd0410f76c62c417e5ed075de8e1af8bedbd2b5368f3fe891ff1fa60f7fcedcc. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USHM91175498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x018c024531cbc8421e1e668abe021295d02c3285872d6ef923604883f88a8d64. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/USHM81032031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b4521d8eb407e808c69c832212f9a0870165ddbad45dd07ecd51af015fcd588. 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/USHM81032032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc116c8f07cbd59f3232814b309e7f63c4679924d6a0fcff2099569425418fd2e. 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/USHM81032033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc0845340f0dd142ee9838c9902207a840534d2563e85534b17eb0b5d1ce1fe2. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:24:44Z), 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/USHM81032034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03b4d06e25ef62224d8db09d08ab636f7f7d37a60a3c12d7061eee646072ed71. Chain 2 (Bitcoin): anchored in block 957653 (2026-07-12T04:35:02Z), 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/USHM81032035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d9d3bae24d83542c2c43d9a1efaa9b533522826ba8bc8bdc97f0518b47411c6. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:35:37Z), 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/USHM81032039.
Does Jesus Care? / Pass Me Not, O Gentle Savior / Rock of Ages
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2736f56c7535d521c262279fcbcde1b838066a2d496a4e75a1538a8a372f4786. 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/USHM81032040.