Raymond & Maria was a Swedish pop group. It was started in 2002 by the male members of the band: Johan, Staffan, Olle and Per. As singers they found Maria and her sister Camilla. The first single from
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 0x911d8852bcd6d437d076a42007cf405803ff90bff0384386362ccbee66ec6d1f. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/156275c9-1d31-4274-a794-6daceed7ad6c.json and https://artists.proofprofile.net/proofs/artist/156275c9-1d31-4274-a794-6daceed7ad6c.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 0xfede79a098411126e06aede8ec73af35580850948a39166d5e5f732c08171c06. 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/SEPQA0310030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfede79a098411126e06aede8ec73af35580850948a39166d5e5f732c08171c06. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/SEPQA0310030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e13089f4621a53a086a884f283067f3dd2cd8cea902edd3f93c887404484283. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/SEY050407000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0522422069cef68ff347ffc299331261f7fc3f16a2def55782490007f940960c. 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/SEPQA0450039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c06a514738d1aac407f088383ec591e7a5ff1a806811846e45e8a5d307dbe01. 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/SEPQA0450044.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x529a882f63305e2e06c8f53df1b277bb2cb034c1f53e3134c2957da054df3c73. 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/SEPQA0650933.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74fc023b1df6c90b686a652d50f3903f8723f82db7e50c0a8c2b9ca7a4aed124. 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/SEPQA0450040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48d525f13dc2e974228fe8aa14b9c71f62d3d62838e9d3d43bb01d80d3f3d030. 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/SEPQA0651030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32f1d53d956ee4563020371c1d97312189618c13d966bb925187ab989f2e1363. 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/SEPQA0450038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6bcb181f1784c92905fa641dc0d3beac6d8cb22b29f0d64b63b3d6bed62319a. 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/SEPQA0450042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1620264a3cd98383868ed76db9cdb04f85b1b74e7a96bd8b853ba01f67c88ab. 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/SEPQA0651029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66c1e3e60fea79cf42cb64842a706c1fa714bdb128810ff38f98a54ae33c685f. 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/SEPQA0651032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba407cd9d9f52d4cbabdea32c7c3bfccbdc9936cb47eb6371c6d6f2b8bc06ebb. 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/SEPQA0450034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf9d0d0fa15c19043dcaf54fb2cfcc5fde6788f9a685e7443138bf5d6e4b2a3a. 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/SEPQA0651036.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfede79a098411126e06aede8ec73af35580850948a39166d5e5f732c08171c06. 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/SEPQA0310030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfede79a098411126e06aede8ec73af35580850948a39166d5e5f732c08171c06. 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/SEPQA0310030.