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 0x12d92ca117a23de9dfad03190a421292aa7d78b7347db87bde409707cbb9091b. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b84ad0d7-5985-42c0-9b8d-abf054c3972a.json and https://artists.proofprofile.net/proofs/artist/b84ad0d7-5985-42c0-9b8d-abf054c3972a.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 0x8c1ea2cff5ab190323c9162f4772d09c1c6212854f821fb4818a1188d2a83770. 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/MYLR11320880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ed45bb075224e19a499b1a19ec85f5f8336320b17f850ff94da9909aade6145. 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/MYLR10820305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5be67d448c5a1689ec7bb14acd037f4cd9574cdaada9093a35f0ba8c10e4ad58. 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/MYLR10820802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x374fc5dd7c6150fbc429d1be651958d10719622e79366f42e946e02c9ad06eee. 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/MYLR10820348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b30a60919f0ee0034f1a2d8e110e800a8097d716c1b7964cbf9e62ffd1a7d01. 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/MYLR10820148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03650d7104c0bbfb571ed4739ed8169320247708737a4d3829602777420c4b28. 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/MYLR10820276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc2bdf7413f6227ae18d42324e9e1f84f189042bd4039b949cfdc230b45a5ae9. 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/MYLR10820200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x830a9eb3fcb9ed8074c6be4c6d2f1584d6b04162a71f8375670d3efd2635d0c5. 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/MYLR10820219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x788d5a7a0de2c6a7b8c6296f37525c0b567b2084eb4c2ca8a39e4977d16cbe69. 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/MYLR10820313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24e5afe76a71f2ff4a2a429ac9130ed37a36b8d0bd1dc0687d1054e0bde1cd8a. 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/MYLR11421131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73712e687ed585db0f873247042ebd47faddbc992e6eb93f19910bd93581b73f. 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/MYHY11401618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7eb2dda0297c2722394dd58eaa4ec660c556e2f5d0db1cdbe7e028225ab4950. 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/MYHY11401634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fb85ce017e34deccc697b0403e1bf444a9fa4777a03e0abcdebc04bf4bb5d35. 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/MYLR10820192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9492cda2a547bf317561eac7bbc03bf6b30d0edf74738198c2a4a2a75a352501. 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/MYLR10820324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x840c5d0930dfc68a70ea55453fa7751c87408894105461c405cee63b596262c6. 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/MYLR11920095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb13223ae946cbbb28f288542f8c3f8b52941a7682d0e3c2718a6f8ebd3f546a7. 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/MYLR10820310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa86a0e77ef7a3b081d2987e92b967c12b01322eaf4e1d5dfd09b188e1ff38d53. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-21T16:17:19Z), 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/MYLR10820146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fb008844aeb5679e096440911aaecd1d065b6d3e725a72c5129db9760fec9ed. 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/MYLR10820293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e99301476a8deeaf0119542860c5b325cc99866afa85b87f2ef401177ce1f99. 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/MYLR10820244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c713dc4e4edce2e3880ad22af93808f72405dcec8ce361f8ed09268937d7631. 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/MYLR10820241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fb85ce017e34deccc697b0403e1bf444a9fa4777a03e0abcdebc04bf4bb5d35. 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/MYLR10820192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee19e34ccf24f08fad4ef771209623bb0e3332f51ec14d837cc480865a1cc3f6. 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/MYLR10820255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a056d4245f581ee0bde34b275ee36ddee51840518bee3339b27da845f4d456a. 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/MYLR10820152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41f0ae03f298d0d93eb819fb31f03954a911da2a3db595f811c805ab2817f66f. 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/MYLR10820139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x958d9f18f78e44ce926208b728a7ea0142946dd8ef69ad2d4ea844978f2f2caf. 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/MYLR10820156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d67cdf8776f54c0971c05c3747c65edb0cacebec123096a4b39a220c4c78e3c. 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/MYLR10820328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa46f5091867855f0e9d264d5ca423c3dfd313ff9a37996297520ed180c6e632e. 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/MYLR10820226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c1bd0be99334811756c0f628001132df8603da4424bde9c342f8b666a816507. 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/MYLR10820331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dfce0e7dc87da969879bb91760fdaf1c9ad612d840c0ffab428f3c901fb7bd4. 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/MYLR10820653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c1ea2cff5ab190323c9162f4772d09c1c6212854f821fb4818a1188d2a83770. 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/MYLR11320880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x923d90aa5b75cc024c1a93b3389d33449062e1dfc73b64f35ce1d4b9c597450a. 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/MYLR10820442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4787b4cbd6d70a52a84716ab61d3d0e259f39d28a4dc9b3a51cf56f8f5862f10. 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/MYLR11420040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11202e7dfeea0f1ec3ef4d144e37700dea707437c950a8f3dfa32c9f6708e4c5. 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/MYLR11420397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d718fcc0c07e745878bbdb97ee4f4e4e3fc0727c21785736412e795d07c0b81. 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/MYLR11320990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x468ebfba15bd0dee339263f06fa6b9c79768fffbe909cea54fe561f01c59f309. 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/MYLR11422037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c37e82d8b35485961ad7c31d261c25e2862911a641fa563da51721d094d2f9b. 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/MYLR11420666.
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