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 0x404f68493ad03c19fc0bf8655831c730bda886f255e212cd7015843da9f38c3e. 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/a75ba4e8-635f-45d7-973e-a71b64f8e00b.json and https://artists.proofprofile.net/proofs/artist/a75ba4e8-635f-45d7-973e-a71b64f8e00b.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 0xbc9779d9b6ce73908dd633b63f39823adc43ea13686728aafa8db23d1e1a5b9f. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T16:09:48Z), 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/GBSMU6535082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3441544ce00dd048587b8e4cea0588075ebdf5d5898148c49c10ed9ccabd196. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/GBSMU6574111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a6e8cb941011ca1108ee5a11c63c63af7a35b94c4a29db04e5b6be2f2f5685b. 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/GBSMU6574117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x758863a2c8605d539dcf5eab3b83c42e177a28f45560642ab13c744e6278aac3. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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/GBSMU7081438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x534cbfead0044d91a9f9df6867e5407830dc76773c346bb5946b44d967d641a1. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/GBSMU7081450.
Støy i magen til det nyfødte barnet mitt
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0be5dfcda18c8e496b5191fc337ee2169193f9b38e1b308b72e485e8f27f79e0. 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/GBSMU7081452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b5cc73b2fe7909e70e619f99de17c0c59d465b43fe5af35a1f7086676159d80. 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/GBSMU7081457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f57abb321971b83a5be08f07b0b819df08a60d190771d74c096c183bed24e20. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/GBSMU7081458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fc4228e3647ea27da8034b973a7922a5b0d440784dc94cf3f85c273542ad2f6. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZAKB2125362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd608d1d008ac7134ff24fde8719bc909d4a8419d866e9863eceb8ab2b99576ad. 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/QZAKB2125364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d99c569a0e174d1f9a276c5f30cedfa1d720eb7993966bce529b85d37f8b206. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T21:43:13Z), 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/QZAKB2125365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdec5ce2b2f554d69feb61102bba3beee9e087d5bc954eedab4f17469cd04a016. Chain 2 (Bitcoin): anchored in block 958104 (2026-07-15T05:34:05Z), 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/QZAKB2125366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2818b9403809ef62c1c797842edffeda02ba40ac7916b04e74e94211c68f265f. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/QZAKB2125367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x705c3da40db118f520cdd8c1f56f3e70abf56ebb0c9e66f40f307f96b8d73eed. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T23:43:21Z), 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/QZAKB2125368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb525f8ccf004270bf7fa064bf9dcc69d2ce0f5a9250eb27da1743aabc1a386f1. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZAKB2125369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82c4e15d8bcb778d85c4acb1f50f1710f5ccf722fa93d946dd3e06fa611103c6. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T21:57:02Z), 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/QZAKB2125370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1fc2f757639f4ed89f5106978ca75e14600755aaef424d8e94b194002e284d4. 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/QZAKB2125371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf66dc679ed09ddc4b52e3157abbee6ced88fce8ff3a9a6eb955859213d87fdb. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QZAKB2125372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa14bb374fc3c4295db383d504f290fb03d3b73b45b21649516b17e926019e279. 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/QZAKB2125373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44395d1102488000f1dc5d6ff33d2549a03cd1975fe180a3c6f01f3dd03df5c6. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T02:06:21Z), 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/QZAKB2127367.