Raghav Mathur (born April 2, 1981), professionally known as Raghav, is a Canadian singer and songwriter. He has released three studio albums: Storyteller (2004), Identity (2009), and The Phoenix (2012
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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f4d9e9b4a8c67c1b81ecd8c7896ff50db65a25e9b7d63652d9a6bbcbae211ac. 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/c3e7f4c5-4759-4307-80a0-78168fd2e4a6.json and https://artists.proofprofile.net/proofs/artist/c3e7f4c5-4759-4307-80a0-78168fd2e4a6.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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x535ed4cd2b4cdceb8c5e39090890b4ad81dfa2e179752a64c485f0c89caed245. 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/TCACR1694470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86fd6e14dd5eeaad6d7ad215a153828f202749ae27db22d1a8953efbdebb8c2a. 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/TCACR1694471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46ef6f43b9b4efdc80a216626ab736de1c32cbf99cb9838ac5a033b3604bf5bc. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/TCACR1694472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74a675e74a8b6e4a99c67dfbe068165a1ae44ed4abc0b8d311d683a58383585f. 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/TCACR1694473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02eb030330aa2a88eb4c9dba8255bf8c8b1337ee6f87d61bf0251d3c32d49547. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/TCACR1694474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb543cb708fd4187739b1525219a57018857a12963fd55dca38b9b0f0efa6e04f. 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/TCACR1694475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c93102c7cab42d9511a9c2966458a8ef3ae40ed9fea4de5a70221e8098c2536. 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/TCACR1694476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41d6c9ae8b0aa30b33a46f7a56c580566c9be1d9c4e290db43c2e38077c5dc50. 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/TCACR1694477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe823aa5d933c7c85f29f38cdf02eac3f21c8a0fe6322ca1834ead1019e5f4c8. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/TCACR1694478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dc6e0d6110b02c1c8cc1fdc85e0e4474323506cefb52ae13b739325264a2dc2. 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/TCACR1694479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x274620275a9ee347a24efc3e8637ab85c7a4e6f2fa7258b81aaf83f482f00e6c. 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/TCACR1694480.
Sooner or Later (feat. Kardinal Offishall)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebae91ee4957c1a7b8f5a94048fb274bc2584d193ae0d4bf11cdcdc4a6ddbd47. 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/TCACR1694481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x326cc8e1bf31a03bdfaea48d82d717910e8ee99c73611aed587b83d472d45a96. 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/TCACR1694483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef04d9eac8adff1d93f13576312a9d672145b516bb1c12f6b965c60f895df3ce. 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/TCACR1694484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73f4b390eb1bb66c556b5e3e6ea00e1f5279f471066ef9688395caf26cd9ffba. 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/TCACR1694485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa01d57e0f4c7e0c7134c01429edb5625e44b2b5d7785c3b941f5e54017084ede. 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/TCACR1694486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x646a146db5bef801e668226cc4ca5cd3897faf28d8ca38a264e5ffb442046fd8. 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/INS180351133.
Rang Barse Bash - The Ultimate Holi Mashup
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55422cb92edb20a5b1a583ecc8e6f6456fa94a42e874ff1cc13d055a1ef23e65. 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/INS182401004.