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 0x565a52744128f50ce834c956ab4c794946ceccf81c8b8826a69d21790c195eb6. Chain 2 (Bitcoin): anchored in block 953786 (2026-06-15T12:56:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d7a9678e-090e-47d8-be7a-35c06b57f403.json and https://artists.proofprofile.net/proofs/artist/d7a9678e-090e-47d8-be7a-35c06b57f403.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 0xefad095cbd6690119d87abc8cd93b95d2b37245f9b6a9ce79b9b9a77dec07bee. 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/USJE61603067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50e2b011b177afc9746b71ed4ad3cadbe6891860d2519c4c5a8221c0c6536b3e. 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/USJE61603068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6d00dfecee064a52d4c3ae6a0b8ad581ed8d19bdabee67c9eb3231717adbfe1. 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/USJE61603069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dfde0b4bb4c00d23edf46ba95c77a47b11157f3f07566ea950293883fe191b9. 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/USJE61603070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dec182da5ec1352d3f98b578c2a49d424e7735ea08c12a62647db7a38d5456f. 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/USJE61603071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06f0e4491c29b3c465b400602ebf859ce8c6c57c8675ecca10b312641cd1be87. 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/USJE61603072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d78c1a6a96076e04c6cc4df869b29445e20e9fb5d7272e606debe2c2afa8d43. 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/USJE61603073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd08921fb71f840543e8019aaa5a2df7607625b6f6703c983a6b16ac9b820cfb5. 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/USJE61603074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ace23a935a0141e58419f17df99fd589b46f5ef1e76834c3f604eaf03a2577e. 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/USJE61603075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0cb9ea001dc60aec4354e78329b24ed4f887d68806d8eb01fdba279f05e9bbc. 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/USJE61603076.
La Historia: Los 11 Grandes Exitos de los Hermanos Primera (1996-2001)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70f46231a6444e062d6ed12737db68453890e1a18abe135dffb9cafce5cd6d26. 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/USJE61304462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c1166b7c59dfb3a1d3b029f73ee385940bc92fd20fa3f8163d63f6ef4e3a0a2. Chain 2 (Bitcoin): anchored in block 957056 (2026-07-21T20:40:05Z), 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/USJE61304463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d0de084323a009470e73adc1e203d917f34dee813c56616068bf48f74a138c5. 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/USJE61500049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2787bd1bf8393485efdfcc1759fc51b599ff8319713d898485c5d0ef001a2849. Chain 2 (Bitcoin): anchored in block 957067 (2026-07-21T22:41:43Z), 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/USJE61500047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6811ec1c91896f3d082d57823e129e9b3909a283fcbd634dd75b92284bc2c0d3. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/USJE61500051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1417814089d9b35c1c4049d32b3ea5db043acf722501faaadc9db4347a982a39. 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/USJE61304461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95c40d034d582014e2c2ef5c2d0959e2778ca7c37590813dec0ec80729c4fa1d. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-21T23:15:03Z), 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/USJE61304460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefad095cbd6690119d87abc8cd93b95d2b37245f9b6a9ce79b9b9a77dec07bee. 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/USJE61603067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19a9a4c74cbc09dd5d9668894fced084a27a2f80f71d664a7624b2985c6c89d5. 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/USJE61603061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3580a6afc218a559833efe35c1d57e37f24a9d420e5bd5ebb8b2ec6e1cb6c622. 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/USJE61603058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc34422cd2f11c66f93b4c69ff641e078aa0d59e07170c7d4007a826f242cb31e. 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/USJE61603057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34d95d985588af3c9ca29fee3da810f363d1f0ac380d1373a4fd3cf2135c0088. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GBMA21880959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacddc96e2c9c343f8d661f57f2c0c5f00aa706269dbce7694680241a9b1aeda6. 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/GBMA21880986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd0d976673af5a010f929b1ea75bb5033ca6ee439d015641d120c894ec244361. 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/GBMA21881013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1e2cf1af9662b0b7986c1cbff85997593a542c217db8b6297b0b4b705bcae5b. 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/GBMA21881040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x140eef3441bdabecb07090e09c30baea2f25fb69901f553d55dc32869568c94e. 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/GBMA21881261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eca3ecc61e1beae495490fd93f49b9ff485ddb437447d2bc1f625e99836567d. 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/GBMA21881265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09e27c3ec73ea061366a79f4340a0aadd41610628950af25023e04516a10accd. 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/GBMA21881271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1f2926bd9bbdf5b406309366644666669f7659b63e226fb5b72073e38658e61. 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/GBMA21881275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffcc75753f4dda0af0151d7c06953223b4cc7f33e5d85788a60ba32bde1d250c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-22T00:52:48Z), 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/GBMA21881300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x601990a436b0fc557eeb0f9fe52a5d13966a85891248f66f4229440ce3106274. 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/GBMA21881321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ffcdf62a1ea4057395f73046cc3b2f1c5de5ec00073e5a9776183008f708d2a. 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/USJE61603065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbab56c526b8ee51986aeb8a552dcf1c82ee5618d50c54b2638599351f9467e1. 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/USJE61604014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60896e9120c3cdd1f415486ee037b68d51ed83eb7cb39a516e126095b873ebca. 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/USJE61304459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6811ec1c91896f3d082d57823e129e9b3909a283fcbd634dd75b92284bc2c0d3. 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/USJE61500051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ccdeec52a49c60fa3d484f77d2426d074ce8f3743a84ba6d6dd923b97289df4. 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/USJE61304452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19a9a4c74cbc09dd5d9668894fced084a27a2f80f71d664a7624b2985c6c89d5. 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/USJE61603061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e7ff0a43ec431d6fca7f74ecedafdd9a108bea40080116c7fc10b389939985f. 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/USJE61612000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fc956bf8c6170beaaae635bb3e0e25a88ade596c5bdad7fd0a7cd204c4e5bc7. 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/USJE61304464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefad095cbd6690119d87abc8cd93b95d2b37245f9b6a9ce79b9b9a77dec07bee. 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/USJE61603067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67ecce1b168e5df3f1c2a441e1ff101c62e35d5f3078718402df0d88f16c6446. 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/USJE61604018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05b10b1ff5d8c19c420dded4810ec1efc23867bd0f71177b478ec359a1441be8. 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/USJE61603059.