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 0xa21d28621fe128bdc804a527bfbe0286c76a910cb5f60d5d14f36c00bc4a3fb8. 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/b9c764df-d810-4595-b17f-54a490b22a2b.json and https://artists.proofprofile.net/proofs/artist/b9c764df-d810-4595-b17f-54a490b22a2b.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 0x590e0775147aceca377dc31cc2640e8d21f9c5ae780000c411fb9f6456dbfd0a. 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/USTCF2301117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba57ed51705b6a90f76549227bb6e6b7194e7a136f1ee2c6ec34c80e1931da93. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZPJG2000056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x440b0ca16c37db4c4780e2ddff790855dcb56d5905fbb2f1115221e02a8b1bac. 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/QZPJG2000277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x916f2dd374f7869a6024b2ca95f0d83bcf7691d96feb98ac42741d25258ba3dd. 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/QZPJG2000281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbba4542f05a16e0a80018e471fd906be152508a30b8c0499aa2e37e3c65b25af. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZPJG2000282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd310821fb7a09bebc5ca8858dc2ffcb6848a801017c92f567e298e3b170383d5. 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/QZPJG2000067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9deba1fc92f3d8cce2fb23ea28805d376b6b3155fca072a8e207b0bb3833beea. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZPJG2000065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x556230be57988e03d147915997a2787dedced4a6f9a0e0e9c7818f6f36243afc. 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/QZPJG2000283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedb49f3cd6bc4e53711d02df2c33325d0c8871ad6cf4db2ed7e5895dcb249202. 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/QZPJG2000284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e426e2d6e7418e748dae0d3214b656715a90f6a7c9196aa02c8dbba0d3d2b02. 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/QZPJG2000052.
Christ And Christ Crucified (Spontaneous) - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2676c2ce50471fac461f8ff8b82b48eab182f81aaecbed78fe788b357ee1b1d3. 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/QZPJG2000053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4394f8ebbae4433a3cdf03439244aa41bdfd0ccf951ba86c8f3e516f4c14e04c. 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/QZPJG2000060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f3a24527ff78a11366974b3eab5db9fead4229103ca40f457ce901c570afb66. 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/QZPJG2000054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba57ed51705b6a90f76549227bb6e6b7194e7a136f1ee2c6ec34c80e1931da93. 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/QZPJG2000056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb46c3a2d22db1e94257fea0bf7aab1b4a9bf9bfd17ba81d6853f9b1ed4bf2c5. 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/QZPJG2000058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5afd58faae559ef5a9ca98563e9b900f6db752f31247eb0c2e05a30c47fd8e2. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZPJG2000059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd120e858c1d062f362d7369b7aff37c185bd21aa1f994f5e6f75d582e4f06e6. 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/GBLFP1598445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53ed90c192b68c25909c45aab60177e7f9d64af7b0058b28a19d81dd322b1b4f. 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/GBLFP1598446.
Lay It All Down (Whatever It Takes) - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd47e0b5e7cfbbbc75f4245ead316aaf35c4a01cf7339ae6cb14ac1ec4087306c. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBLFP1598447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f71055702d39895c970ff9a7bbd3d2d680f65af07ef2e678852dceeca7fc7b5. 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/GBLFP1598448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x091943f4f7e871ee1d4c02a153c62d80ca54df2da4c3529df60536c244d1e0ab. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBLFP1598449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8c08aa89f944d3230ec14e55bba25820c057d28b2375ee771abea4828e1009d. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBLFP1598450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d66ba64223fbd3d25ddc9df3ca597b735cdcc7dba868803fef55f58f968aeca. 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/GBLFP1598326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27c4b517a4c07a9270f07c8d298d3ca554a40b221da152f1a7eaa70589105e2d. 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/GBLFP1598327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcb56eb65baf9cd718d235ae2c8498f127a5e3bd28d22dbf664998c6337f0772. 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/TCACM1619279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcb56eb65baf9cd718d235ae2c8498f127a5e3bd28d22dbf664998c6337f0772. 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/TCACM1619279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9c755bbc0178e51de7dcbca9d9cb9e822a20bea7988434b50d530bd0c313157. 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/GBLFP1598328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ff3f0692e6fcdd83c3688f89d705b57d2bd94ddbc1e1bed88ce941e9e92d16c. 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/USUM72311220.
Christ and Christ Crucified (Spontaneous)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x259882a0c27860d03fdcfd16603deba1c43d51cf53c2f699fb3e942d1268feca. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/AUMEV2388621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44ba4700a6b12cce8e704bc329272b87350d59fdb26aa0ffc92b519c3d282321. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZPJG2000086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19e1c0cdc1860895cab6ecb32e46881ea1bc866193d51e2d0e8be958f42081d0. 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/USUM72222480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9deba1fc92f3d8cce2fb23ea28805d376b6b3155fca072a8e207b0bb3833beea. 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/QZPJG2000065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e426e2d6e7418e748dae0d3214b656715a90f6a7c9196aa02c8dbba0d3d2b02. 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/QZPJG2000052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2676c2ce50471fac461f8ff8b82b48eab182f81aaecbed78fe788b357ee1b1d3. 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/QZPJG2000053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ccff9048f54a2a601fd747db84c440cb19d8f7b408740906f66dbcfff2beb6c. 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/QMDTK2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b79784353cf736fdd884773d7935eced01a91c3adba7dc5acd02b1c72f0150d. 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/US25L2100014.
No Orphans In Heaven (Let It Be So On Earth)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e302c70e0e7b96a0da112b3eb5f2da87c79f0eb25e0977b993b30e3fb99d74d. 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/QZPJG2000014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee309820bd23ac4d7d45c46280e039f39d9f2fad36e8e26488911594a048d3f7. 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/US25L2000212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ac64dd3949e41600cc87efd40541706e3397952e0ba4f9e40a06ca7a1202b80. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/TCAEZ2055540.