1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xddf25d866f1d315d298a10c55f821e96c5c8a0fa64b4b2f70c2618dcc3024958. 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/6371581f-e44b-4a5b-8957-adb5034aa955.json and https://artists.proofprofile.net/proofs/artist/6371581f-e44b-4a5b-8957-adb5034aa955.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 → block OTSBitcoinBlock must exist at that height 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 0x65f3d8415d7a5ab7ab694f211d5fce86bba48e8965535d3d09205a00d9dc5520. 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/SE5IB2321199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39c3708b08761d5c4cfb38dc649d1a6980cd5af9375d0c13ebd72d411528553b. 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/SE5IB2333715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcabee40974ed37013d2236cac50118c47f1f1be93b9f82aed84baab35ff7af40. 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/SE5IB1900944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1178bd785fc5e95336ca2def74332da6c7fcf9a5ebb3b1a7e57523b83d920287. 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/SE5IB2342435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ca55552d5018497799bd35f8183be128797ba99b1141d3543297c12d6849bb9. 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/SE5IB2322351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ceeecf374f052d960e64e1bc3419fd4531370761fba323c2ffa5a450db6c503. 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/SE5IB2313803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c7085cc8e78df555f13bacee84c473ad6c5c17a744e3443b9dd4de4c9cd34b9. 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/SE5IB2309260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x126e84320c579f612df5c00646d523f28255ebad5964c206559fc45d5828c65b. 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/SE5IB2316223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x556eddd73b6f2569270ebba53dd7626c6833d8c03af9cd5ce4cb11934d873c92. 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/SE5IB2268865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x927c517be910a1f3c4782562592cd0470b407dd22df9a1272d3f091d6fe98ed8. 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/SE5IB2328483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cb5926474d51d43f83177500c159e22bcd18fbb389f02283a0a68b670035f74. 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/SE5IB2313799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35c5b2f300da3a7b759ace4c6bc23b3d61d3f2a5c587e65ab99464bd3843e4b4. 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/SE5IB2309287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea49dd99f8470f3fcb72c586224663afddd1f375504c1ea915a2d9dc3a9b0ac3. 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/SE5IB2326383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dd169299d3fbc90068e5e412271a84e8d8530746ad44f39d067452bf10bbeee. 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/SE5IB2264529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x058d9eb700e27e9a58ed405a9bda5c0f37a81a820447f74dcf072a0be0404ed3. 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/SE5IB2279921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9339d0148c0ceb24cb03224a465f3186bdf90ff26a150c4053496f5481b80203. 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/SE5IB2342419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa56c75fdb0706b1fdd3a21f232c09f3f7a7b0c2527b6b4a49de1b03e424ab331. 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/SE69Z2404288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f75c611b2c71eacc6461c417a7e70a2cb7e1b4ad82b493823c252b1d9bfcceb. 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/SE5IB2343707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0eb6f15a156a7d959d8fb1f8fb2a07600127e78a5dd3c12dcaac8a5def0d9e7d. 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/SE5IB2312267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68d99628192fdf1d922a4afa95821749d034ae745b44ef5eae3abe675ea013d6. 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/SE5IB2327959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd97fcf8802c9c1712cadbf6b8e476354bfe88bac94331591ca0687a3ff2d6657. 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/SE5IB2305024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0a5bcd441daae23bc1ffe9b1367430e1ea9af5c1e66c67f63ba8f1bdeb5ae72. 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/SE5IB2305459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x327ba6aa03c2a5718c0e7390e2804a984022a33fc21d58d7a746cef973fda2c3. 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/SE5IB2304955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5cf407e70412552a777e6bd14fc5e7f9c0689c63e491efb342b322c1523299e. 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/SE5IB2304982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a244112dfb2c45fdbec9b4ee0c5dd3e371660330e94b540091d50e33c698875. 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/SE5IB2305468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e1cacc436af8270af641b656d9ba445a8988e524486a2b0afc2e566125a5d4f. 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/SE5IB2305498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7e923f87459558a86f5ea83e3f07cf6ea90e59faddab1ee4a8c07ad79920233. 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/SE5IB2304907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ebbd4ff2cc7856505c1983e41045948a495b1e993f8169e49fc4ce522a3aa35. 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/SE5IB2304934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc09c1fd8bd2d5492d7258197f556e8d015a60527e6155a0e2c07bbd774f6fbb7. 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/SE5IB2304940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4624552e1c7dcf138b14a54a3703d085bf850beba12d33581248d288b3f89d6c. 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/SE5IB2304979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdccff608b7c990084b2bf12703176da687382f446dcafbbf6c6236dd7ada27a. 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/SE5IB2305066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7836e0c5935f737ec14e29f4839fbae127616c19e9ce9a4eec12ca8f551e420. 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/SE5IB2305087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a1361850acaa53be25557dc41f31a0c72d7516c1fa2081a9fb85538112c35e7. 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/SE5IB2305111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4813334add852c745db98eaa72a6c84b42ab666c6f32b7d47906152e01e85133. 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/SE69Z2404318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9339d0148c0ceb24cb03224a465f3186bdf90ff26a150c4053496f5481b80203. 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/SE5IB2342419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0d16a788bc8d3ef1d31b4f4cf26e300d49fb0357d62e27b4f7cd81baa4a23b8. 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/SE5IB2302366.