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 0x775712d85a92e82c5bd2a7dfcacc2bb986b7dcfa71051f003b4b004c93292460. 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/8f70b58a-ea9a-478b-a6d5-18dbbdf9faac.json and https://artists.proofprofile.net/proofs/artist/8f70b58a-ea9a-478b-a6d5-18dbbdf9faac.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 0xb241d35abe5451fb7966a67a83fa5b4012f7483a4ccaac6366e39395f22451ae. 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/US83Z2328510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dcb49597720903d3d37430836042a0ba1d295465b2bb416a6c9fdeec6ccbc5e. 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/US83Z2136817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd6edd8b788adf647427e6e3950e4aaf968719c0978a8759787944823070f3bf. 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/US83Z2478802.
Love in My Heart - Paradise Extended Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb241d35abe5451fb7966a67a83fa5b4012f7483a4ccaac6366e39395f22451ae. 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/US83Z2328510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dcb49597720903d3d37430836042a0ba1d295465b2bb416a6c9fdeec6ccbc5e. 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/US83Z2136817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84c52f42ab95db6269c9d0977f072e2a6e007ec453796137f60545c2596d426e. 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/US83Z2319423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x924134820e1cac74e9f17e5078741975bb9e905460f4a60a9b50c687af2ea3bf. 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/US83Z2146834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb6144f9ff3b3b8514b9b9c57753fe60de60b348cf9a73e392469a9a0ea44088. 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/US83Z2478861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30ad59d01caf88dcc6065ff51fd7b45c0bcabf6d84bd62232bd5e016f615a6c8. 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/US83Z2142765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cbabf74b58e55fe27c618113a97c78379a21b9e31697c166d0851d955f18398. 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/US83Z2308655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fdc3eceaf118c79f6daaecb7d26accb674f300b8e93b093b2494ffc5377f00d. 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/US83Z2354551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7c3a5eaec3ba0f1a6af2a7f6427b8d364d9efb5e128aad9a493d3173df97825. 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/US83Z2477257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffea3707de0adf1c58f65aa50112fa420eb4d7fface0404a50f40a15c787a2fe. 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/US83Z2349389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84c52f42ab95db6269c9d0977f072e2a6e007ec453796137f60545c2596d426e. 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/US83Z2319423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84c52f42ab95db6269c9d0977f072e2a6e007ec453796137f60545c2596d426e. 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/US83Z2319423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b6a3a91178ad7fc22be72678d7e8b83cbbbc6816d04320e222f8f5984462ae1. 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/US83Z2142764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa78ac7f3f5ea7586ecb79f2b185b2cda07116e278b3495d69f3967e05a6ca40c. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/RUA3R2324600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2605f77df964f3748f56cc19c5616df7546a24ae3ebb2b667861eb684ad1f5b4. 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/RUA3R2324603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79f13913b143f18d7c33f9faae764dd059b51258f250d9884040c2cbb011c335. 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/RUA3R2324610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27a5ea566ba08285d0251492ffd28fdee11bcef1a033ef7dd0499cda28369f73. 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/RUA3R2150000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb40a0c7442e88da1e592e03e837ed034871f6f5484bd69ee352636ec90b7bb83. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/RUA3R2150001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78f99140081df08726297668d44a12a1a2695a71cff2df610e0c724d25bd47b9. 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/RUA3R2150010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb15422a5b88453d91cffc51bfcc1e2d7fbb39d2f177503459cd074a1b6a0e828. 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/RUA3R2150004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17c5e6938b8086ed2d4fa69e9a78b5fc5eeb4f0df4f36243b675afcf31185b7c. 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/RUA3R2150007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b1485daef6dfe621fdeffc5f1d8de94056806ff59e6c420d7ae268203f1f953. 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/RUA3R2149778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x695abf01acc1bc37eaf1c3b9f192eac3a0a8f651f12aaeb0ab429becbaef4cdd. 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/RUA3R2145051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x246729e51e931fd944986db1c5a342a54f1f5ae7a221f157e4905151ad17d5a7. 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/RUA3R2145058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcad016a048f4b8268a47d63991d3600c9aa33d7bf11745146efccbe9d2ec2fcc. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/RUA3R2145055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb67d32e0d6a07a5b5377b8030a7cae1711a4b91fe22334f1fa9340e6f0560612. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/RUA3R2145054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7999feeb7419d7eb3161ebe42bf0461500469aede38ce2e5b8e246fbe761520. 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/RUA3R2145057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x980d43331204a99df4d339ca4a4df8b9e0e30f0f8157f538b016b3bca5acb98f. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:41:14Z), 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/RUA3R2145059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f6921e50517816fc80eb7f277761f41c5ad1f2af432374d5ebc53cecd394038. 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/US83Z2409950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb7961a0972c19745029b7a5ad573de9bb428f5579577242c4c36c4dbd050d95. 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/RUA3R2340236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b2a5b069ef399fc0bb1263ea8e725fed2ff2d783d06c9fe8027c107ff4dddef. 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/RUA3R2339200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x240bc955cd7c22220f330d34a36141b02886d855c71f821dd6704d5d29859e4d. 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/RUA3R2338678.
Summer Love Story - Deep Immersion Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b7809d9dca3f17e1cbb2bc3fc8379f7d59ab55955dc47eba90cbc74743e46d1. 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/RUA3R2338202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x765077acd3bf9da4624be3d3d802d946c73f08d5000d6e8273aa5eaf71932b38. 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/US83Z2491971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4181b663b768d697d5eb1ae41da860f33b45ef00981fbed762309b42a64a891. 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/US83Z2489872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94927384f24d7178c3cb1bdd0f29196fafc56376ad55f766f4f56c619059904b. 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/US83Z2478803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9be7a368c7ebffdae9df4b22e7f48cc9b0fdfa06bcabf09de62d101cfbd66c86. 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/GBKQU1773192.