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 0x04ec5e2377b158a8a98df91101ccfa83d6f24e9c794903a207f74083fc369ec4. Chain 2 (Bitcoin): anchored in block 954115 (2026-06-17T15:44:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/79d1d219-170b-44a3-ac5c-eab8080674f2.json and https://artists.proofprofile.net/proofs/artist/79d1d219-170b-44a3-ac5c-eab8080674f2.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 0x36fd36e1fb09e0114a1977fd19add91dd15bbbd9b8976f0c864c636afdb70192. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:52:10Z), 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/USCW61807130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69822447e32f90e41f9d14948c88375ca5deaae7973ef910a7691f2ec8810fe6. 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/USCW61807131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a87b1c2e57d93cc9b0f7d1cc616befa2bd68a37f3b15f0154873e30fa19e985. 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/USCW61807133.
Basement Beehive: The Girl Group Underground
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24a42948b1d328f8adaa9cbf07ca3f38aaa06f632eb2070f6b82b8b01f303856. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QMB621400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb686370b5da8d268ec7c6611e5bffeed3b554299d03072828523dbfd1b3cbf3c. 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/USCW61807532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ed4fe2269aee2d78061d6fb730bfb363146343bfb25b9c6f0946f3a8967ac9a. 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/USCW61807503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xade4d36a48c436d92a9a0fa6349c7ae07b545c0ae2fd4680f6d7ec2e6170e063. 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/USCW61807533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee0580c793778ee14784b59882c8cc91d3d5c72a4e287e4adc7e81cfae99909b. 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/USCW61807534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x728a3951286fdfec159a3bdf3208ca2b198b58599a39eb11c837b3dfd553483e. 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/USCW61705201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x479a78904a478bfd143502848d585a0da17664a3942f39bc36b9c2b7a00ba72a. 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/USCW61807535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x320914249f9e4ebd51fe87b34c47aa2e7f0f4efec126753691a3c469aeed5318. 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/USCW61601925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacc1897f248f5cf8293ff8377ee213c9245cec8688e1835e6c2862b926964335. 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/USCW61807539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac2c340d19b6512372e7947c3b937e4e76405cc127f5f42ecd924977e1204494. 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/USCW61807540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe80fd727f99e2ae540f7fec86ba96fdc58f8f84b990342bf257fc26c6e9f1ae0. 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/USCW61601910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef35982716cf665b35911d17e839ea143f78a12adb755b9e84afbb2482a27493. 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/USCW61304310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ce0589e7c52dbcafaf163c540c94b81329f841e0ae383d865200ba63a86dfd0. 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/USCW61807542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e3df9a9349f0e781dde64f375b5242f62548a314a2158faf7282b9282f3a181. 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/USCW61741901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaefe44ee35b815c334422f50899a91e4bdb865616a14aab6da27b9f54c95fdf8. 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/QMB621705301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cfc20cd84e3d775a8a2c1dd5c506f48140b70d484d9c7b32027c6f8501a4f46. 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/QMB621705001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91da58b77599b2d099b58d4efe02f126717b90c30efb628a729dc9b762a52256. 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/USCW61807519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ac732bb56abe3845ee650665952d475218ce27db32f3b797649bf0b063b9b01. 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/QMB621704807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aafac9204050d5cd11375288eb8fb8337f4500448836407b71d9c8c5346a7db. 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/USCW61807525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c0e2f439da52d316d123d6499c8097c04947b48fcade7943f4e54b2a3a934cd. 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/USCW61807526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4984dce4d55a160ca7c04147b3a30f9fcfb65c280ae0e70bd75d2563fc2ed26f. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USCW61705209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46086f9a03f44bb3e59d4d2e663c7044f599916858cfb84ce07d5c73dfbad43c. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/USCW61807522.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
All About the Girls - Lost Girl Group Gems of the 1960s
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0191a3945d0e0afd5cdd1251df9627b38f65ba36af81d88f83a903e10781a5c6. 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/GBBLY1504367.