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 0xcd011e796fdb16c978b23d0c23d55d673dc7bff6c8f0e444620df5e5d7e4f0ae. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f59c1547-eba9-4349-8a2c-178c064de6fb.json and https://artists.proofprofile.net/proofs/artist/f59c1547-eba9-4349-8a2c-178c064de6fb.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 0x4aaa20aa760f38e1bbde87b888c9f3a28b0c41507602c108dab7f292238b0c38. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/QZ2J21505010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa2413ff4b034e6def4d4bf1a04661968588ada03b6c4d9a698981252aa7466a. 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/QZ2J21513782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x357b4dc6f7c408db4a38a96eb409f3c16db7e187f9ddfd29ed47677f0daa45f2. Chain 2 (Bitcoin): anchored in block 956404 (2026-07-17T03:16:21Z), 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/QZ2J21513787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x871cadb12b3776b375b68dceb14ddb02d99bc6fbe3341ef1a2ad36671da00717. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:42:01Z), 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/QZ2J21513901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f8edf8ed6e5239f6872943dd92ab0e73f6f4ef57262fc2d4365e53bfd3b8eac. 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/QZ2J21505133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeb706f2d354b2b0147a9ffb04802583205fff897ba2bc8d76707ca5817f2287. Chain 2 (Bitcoin): anchored in block 958417 (2026-07-17T12:56:50Z), 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/QZ2J21513916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35956fb6fbdb53d2d6516cfb7216d2a66733cd0e811d5db69fcb0db0379cc5b3. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-20T00:24:30Z), 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/QZ2J21505263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c48f8afc0380153b427ab7eb67067dd89de76f848951516eecacd5a2830ed5e. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T08:41:49Z), 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/QZ2J21505429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06788cdd1bd781533f8fd1a79f7411b3cc7c87b77a0ec53eb1c1d6cd6e9c1de5. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZ2J21505562.
Al Que Está Sentado En El Trono Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ff107b2f9a2737d3801a417bd96fb40a4c5a37fe824987eb26227f17280df2a. 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/QZ2J21505651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbfeb965cf77e3041964e2a66ad8118e71d8079e3005ab430be786c8af8149ef. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/QZ2J21505754.
Salmo 45 (Eres El Más Hermoso) Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbee64500825d1d50877fca83be7299c69e8e18f98b4f1f553879046133a061ae. 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/QZ2J21505773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d3c416624025e06fb3ab85313feeed2d66c538395ddbf70aa05c83c6afd58eb. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T15:03:07Z), 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/QZ2J21505793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc251b3f22435548a048a4e9b3b5026c8b8e27afe62a465073ffc455bb2f17b34. Chain 2 (Bitcoin): anchored in block 958143 (2026-07-15T10:15:04Z), 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/QZ2J21505830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf520a90d00918d5ae3cd778be5e1f507e9762af1448e751b99f87268a3c71b1b. 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/QZ2J21505854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c276df05b32cd24277df87856373101ec236be8243ffa219c4225929b4b1ac9. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/QZ2J21505870.
Hark! The Herald Angels Sing Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3042833fafa28c3aea8668385ac97bb29bf7c97820b710db29201a0a1d713532. 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/QZ2J21506161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54fa4321cd8f27da3ecddc3cbe7f405b3e575f2413d1068956cd171d9f9e20ed. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/QZ2J21506199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6ec0e15a72d874d811ef32cb4e242387235ae18fc274801c2cdd21b3bb23db5. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T03:59:35Z), 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/QZ2J21506403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf06f591a841274788b3386ec1d5456b556b0bc7a1b9a6245b045a36ead77e621. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/QZ2J21506454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd868a4e1bbfe446762a465e891b8b3111b7b58a25f10091407245906d0dddc41. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZ2J21506474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80084edbcf36b35c19959dcba1aacc90c89db16564a4858c0900e3eebe86fba3. 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/QZ2J21506510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x768c7406294b57698ee332e341f8c7ed6e51b198aa874346cc9ae7c853322249. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZ2J21506518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcec33cf1f821992f15b2e98ad306d6149e6a0c0eeedb1f3ec48434394f949822. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/QZ2J21506533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe244703548b7eeec3301dec141819c78e33e3340d9d6a1a86083b950c79ddef7. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZ2J21506562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d9de20690d762bc645de09cb5df2b117065a1d2e4ac5a332da0b429b2619da7. 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/QZ2J21506621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x776f9e7ee08f66a6cf861fbe8c2fd7bfea4095df507db8c0ae4a1ba35a875f84. 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/QZ2J21506642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e648e205e6fe2b3b319d14d1cde0884a0c19aa63176f440f16be9d02b09bcf0. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), 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/QZ2J21506666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x418c2105c92dcdd1d2df89aed942ed6817bbaf1041bc2fc8dbc0d19f89294517. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/QZ2J21507346.