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 0x9c1f85005acc5e00d329203994c2aaa658acbd0679f545a99f35551fd8a0301b. 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/0e8de677-7c9a-474c-8a95-808c8470d616.json and https://artists.proofprofile.net/proofs/artist/0e8de677-7c9a-474c-8a95-808c8470d616.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 0x801d6094ac113a0196982bc87b4adf149545b7c706681122f7b4b042924e6e38. 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/DEPI82432598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3486fdb86bdcfa6446c8c4a9ed377284ec3f32dfa26f31c2e09f3de279ac8bf. 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/DEPI82432414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0662901310874424a6fed48e75f71e269322339a38783b3ad0b4e739ba275f86. 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/DEPI82432416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08ea08b7c6541bbd1bcc76b57edec70301c68e491340c81545bb6c92bbdfac64. 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/DEPI82432417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15230247d5501852874c666fe15727dc7c4d7b52fba8388b4661cf396989500b. 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/DEPI82432420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeaa25a64398bdb185c8cba85e90b869bf7be08792200d7e2850b24d6080e121. 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/DEPI82432421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2cb9c4da7e57ca81e2dc5074427399458f21f498e1771192e518ccca2c7cf8d. 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/DEPI82432058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x695c2ca481c2a0b7115ec64f07c461f5ed5ec5d5652fdae1a418d90e134cc989. 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/DEPI82432057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfee1532559c20168b6eff33f1f760cb2ae14887fa072819e0339feeba55cd37. 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/DEPI82432051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5fedf56c68c0011ee3c9a12810144f33c0344c6c13b72718d2bbc6676e43639. 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/DEPI82432050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43f4ebc5a8897829dbbf11db31ff08797f287d08117327c4a6e3c904d0c39fd1. 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/DEPI82432047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdada929f4ce2ac11c03495a81bf841aacb6bb2b39395f4e9a792c78b6bdb8914. 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/DEPI82431859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cb7996c9c884bf72da25502fa600b8a73a6040c437386f4eea5c9d6ca312344. 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/DEPI82431857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18b2a49f18555c463126e28ca0756965ac28502df3de345d28adef4be61ad3e6. 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/DEPI82431855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93477ac03768c911634ce13143f1a43094b5abc9f35ce96fde0202d70cf862a8. 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/DEPI82431854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9175169c7389a48aa88339f7650cd88d2f069d0f9e9adea2c87ff4be6d46498. 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/DEPI82431853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd00a4459f7b6d1f7cfea25ccbd400a2f8a4abf35b0d2b6469ebe40dca2c5bfa3. 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/DEPI82431742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2703bd10f1ec0669f55635977fe73a5e7dd71a7442a9c5221804e24295893896. 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/DEPI82431740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f6df5ebd39fa14199ad46a28a9a136a355a4c58f0fca2a3e88040ea4cecd948. 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/DEPI82431737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb92ee6358985dac683e397c38da6159f0d34609f9274fcb376f8f1cd3600cc47. 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/DEPI82431735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43514dfd3ed4751cd7c6bbb71f7ccf2e138f99f3354ff827680993302298be6e. 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/DEPI82431268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dd3a857c477471c81177e3ec97b96c366f07423d00bf1f7d431b7b5b6b18473. 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/DEPI82431266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0c0443ac60ef35e11479ed72f068319861b60e4448ac006c703159ab57705b4. 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/DEPI82431263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0434089a4c997bb0564079c3df0cb43fb2fffc60bc6a6ac6fac482317c7f6989. 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/DEPI82431262.
There Has Never Been a Day I Haven't Loved You
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14f1263babadeb453219c63050ea1d00eb2250fc1869c6b477bfb275409de48c. 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/DEPI82431261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf16b77d1c2d4dd54270555861c51fdcfff2db19b57e260c7aded55e05a95c10c. 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/DEPI82431247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d1c579d8212300db71a978dcf1eeecf618b2e3b70ba045c912f0cefd6d14fe2. 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/DEPI82431246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31c6e3ee9bd3c4fe80a8dec0a7c6eef4fdb33eda6a0e8c3dd07e52790e6f0f33. 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/DEPI82431242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b07fc2e68da0b4870698d8d5ceaf29d6dd5b068f53ae5ee20bcaf90ca6d04c1. 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/DEPI82431240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a93fcab44e45ef97c22e7e8a340f2ddd937ae2a8ff9e7c740b5cefb7a096efa. 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/DEPI82431237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x967379d4e5f55b56500bfbc75810eb2eca2f18647a793a81e7441cb6f86f1682. 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/DEPI82431108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83eab6f0ffd83eda07d10dfb1ffea74f52dca6d905c5a79c77711b2e442f2b9c. 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/DEPI82431106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea5acdb5a1e5bf58d412167959633308c71cd68734f014e01c10190606a5ccb4. 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/DEPI82431105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c66b307f9694fdd2e0fbef01cff4fab678db46c950f546bcfa0e70fc4ee2a20. 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/DEPI82431104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cf406daf99d77ba4f788e1e3d4d9f7cf817807fede59a626d0d57b1a92edb12. 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/DEPI82431103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4bfa30514cb3f8dc2e81a472c2e61758000ea6802fb43fd0cc87fe26d6210dc. 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/DEPI82430763.
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