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 0x2979a14d59a5cfc296090846b8552298f26c1dae2867903a2a1af953798bb422. 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/ce70979b-9f81-4063-8d4b-e092bc9821d2.json and https://artists.proofprofile.net/proofs/artist/ce70979b-9f81-4063-8d4b-e092bc9821d2.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 0xd7d24f07d3bed2d8509e502d9153ddb8bacf6c413622f07300fbfe1a641851a6. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T17:35:11Z), 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/NLRD52310382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x621986833dba8594f6e4bcab57cb9e6cee7dd4f8bffa725627d57a44e2f91f46. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/NLRD52310404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb544dca75cf66485226e3eebfa73753b5d6a7679e40c2aec80e4f45d20ea3a2f. 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/NLRD52320678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb36a82b754c282a6cacdf9fb8373df6c6277c790fa2cc050ae66623b3854a93f. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T22:19:18Z), 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/NLRD52339385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59de3222443b0ed48f8e9e7216779c21c2c6b0d527ee818731b5acba25abf299. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/NLRD52339566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80852c26b40da936c35920fdb53c20737ecd2efa0babb347fd259259f27841fc. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/NLRD52339567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea6e47184d71d760106bfb96f895181f62e8bb2d6306146d9d25abad30613668. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T08:56:51Z), 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/NLRD52339568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c0aa4a42f98f4e87253a49f6847af7caf757ab61659a0cb825a86044d2e24a0. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/NLRD52339570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ece4824e746248fec983180da064782c6dd78ffcba5288ffaeb611ad11ed02c. 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/NLRD52339571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb3e375a6c84098d3f3498b91f98ec4f4646b91c08d3dbba63761882629ad77d. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/NLRD52339572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ed63efdd9dcbed8fbd5c88b4df125da8165fda7a09c6198fab2996fb4cb5cd3. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/NLRD52339573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e8bbfa1b00aafb2b7a080892fa1d1da457540852dec79d9738b58e4c10fb7fd. Chain 2 (Bitcoin): anchored in block 958087 (2026-07-15T02:56:49Z), 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/NLRD52339574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacefa2bd1c798d1d9ec8889a15536643d747ef4794a4a72de4ae201aa82b053b. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/NLRD52345198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7af2a53878cbc61b3af6dbe11e8619df7f36b358e498b447b2cd0df2067db457. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:07:51Z), 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/NLRD52345199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d2f94881d22fed17c48277f83cf66488cad75af057539b0052863b0aa802201. Chain 2 (Bitcoin): anchored in block 957759 (2026-07-12T21:46:51Z), 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/NLRD52345200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54ab1b072a026f01a24a16005c832f7513cac36824180835556fb4e2a9b82966. 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/NLRD52345201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2064cb505c3a7c8ecf33828c84d1cc36f5c5bcb673d46cc6810514b62eafdd8f. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/NLRD52345202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb163dbd332d99fb32d5aafcb1abb7e3728d245334fabdf3829763cae28ee3878. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/NLRD52345204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2441bd01c5af0b0d3543c664db461c955a86e10ef989f8a10cf1203332a54f50. 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/NLRD52345205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60aa6c1c44b2a623749e68cec9829cef90af99b5b79830950293bd96aedafa8e. 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/NLRD52345207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa39bc2464825804fd520902a3a9e52db3545e62e17d097b42aecbbea238b3843. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/NLRD52345871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fd432c4ee5e31b0c2f353a602081fafc29af5ee5f0204e07c458356033f3e99. Chain 2 (Bitcoin): anchored in block 958736 (2026-07-19T15:47:35Z), 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/NLRD52345872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe143115730257d3937c6b091c3903f208e5a4bffe4661a618630cc82ad7b512. 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/NLRD52345874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9fb03456da4621a97e2c8ab70b8cd2ef194fb38c1a94b0b73282284e949b716. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/NLRD52345965.